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Grade 9 Science Lesson on Electromagnetic Waves: Applications and Safety

Comprehensive Grade 9 science lessons covering electromagnetic spectrum properties, practical applications, harmful effects, and safety practices with activities, evidence-based discussions, and media poster presentations.

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GRADE 9 DAILY LESSON LOGS | ILAW Format Name of Lesson / Pangalan ng Aralin Continuation: Electromagnetic Waves - Applications and Harmful Effects of Electromagnetic Radiation Learning Area / Asignatura SCIENCE 9 Term / Week Term 1 | Week 8 Grade Level and Section / Baitang/Pangkat Grade 9 / Section: ____________________ Teacher / Guro DepEd Club Team - DepEdclub.com No. of Sessions / Bilang ng Sesyon Session 1 / Unang Sesyon Session 2 / Ikalawang Sesyon Session 3 / Ikatlong Sesyon Session 4 / Ikaapat na Sesyon References / Mga Sanggunian (books, websites, toolkits, etc.) Primary References • Department of Education. Grade 9 Science Three-Term Budget of Work for Learning Competencies, First Term, Weeks 3-8: electromagnetic radiation, spectrum relationships, practical applications, harmful effects, and the Electromagnetic Spectrum Media Poster performance task (last updated April 17, 2026). • DTC Sorted BoW Lesson Exemplar - Science 9, Term 1, Week 8 (Week 7 Continuation): Applications and Harmful Effects of Electromagnetic Radiation. • ILAW DLL - Science 9, Term 1, Week 7, used only as a continuity reference for the preceding spectrum-ordering, introductory application, evidence-brief, and poster-planning stage. • Department of Education. DepEd Order No. 016, s. 2026, Guidelines on Lesson Planning and Learning Design. • Learning activity sheets and the Lesson Exemplar references and media on radio waves, infrared, visible light, ultraviolet radiation, x- rays, gamma rays, telecommunications, medical imaging, and radiation safety. • Teacher-curated secondary-source packets from recognized science, health, telecommunications, and medical institutions; EM spectrum strips; application and safety case cards; chart paper; markers; and optional presentation or design software. ______________________________________________________________________________ Prepared by DepEd Club Team | Official Website: DepEdClub.com NOTICE: Freely shared to support teachers. Please do not sell, re-upload, redistribute or publish elsewhere.
Declaration of AI use / Deklarasyon sa Paggamit ng AI - Cite how AI was used in the formulation of the lesson plan. See DO 3, 2026 Annex A. (Example Only) AI was used for activity planning, research support, and reviewing the clarity, accuracy, and alignment of the lesson. The teacher remains responsible for contextualizing, validating, and delivering the final lesson based on learners’ needs, language, and classroom realities. Intentions / Mga Layunin Learners will continue the Week 7 lesson by verifying the electromagnetic spectrum relationships, correcting common misconceptions, and explaining claims using scientific evidence rather than memorized labels alone. Learners will deepen their understanding of practical applications by comparing how wavelength, frequency, energy, penetration, absorption, and transmission make particular electromagnetic waves suitable for specific technologies. Learners will synthesize and evaluate secondary-source evidence on harmful effects and safety practices, distinguish responsible risk communication from misinformation, and formulate balanced recommendations for real-life situations. Learners will complete, refine, present, and defend an Electromagnetic Spectrum Media Poster or equivalent visual model that communicates accurate applications, benefits, risks, safety practices, and source acknowledgment to a defined audience. ______________________________________________________________________________ Prepared by DepEd Club Team | Official Website: DepEdClub.com NOTICE: Freely shared to support teachers. Please do not sell, re-upload, redistribute or publish elsewhere.
Learning Competency and Curriculum Standards / Kasanayang Pampagkatuto - Write the competency/ies from the curriculum that we are targeting, and the content or performance standards applicable to the sessions. Relevant Content Standards • Electromagnetic radiation travels using transverse waves of different wavelengths. • Scientists and engineers use electromagnetic radiation to design modern technologies that benefit people and society. Relevant Performance Standard Learners gather information from secondary sources to describe the frequencies across the electromagnetic spectrum and identify practical applications and detrimental effects that electromagnetic radiation may have on living things. BOW Learning Competencies for Weeks 3-8 • Describe electromagnetic radiation as energy created by vibrations of electrically charged particles that can travel through materials or space as transverse waves. • Compare the relative wavelengths and frequencies of radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma radiation. • Identify practical applications of electromagnetic radiation, such as radio waves used in telecommunications and x-rays and gamma rays used in medicine. • Gather information from secondary sources to explain harmful effects that electromagnetic radiation can have on living things. Week 8 Continuation and Completion Focus Advance the Week 7 work from introductory ordering, application matching, and initial evidence gathering to misconception correction, property-to-function reasoning, source triangulation, responsible risk communication, final poster revision, presentation, and individual transfer. The BOW-suggested EM Spectrum Ordering Activity, EMR Applications in Philippine Life Research Mini-Task, Harmful Effects Evidence Brief, and Electromagnetic Spectrum Media Poster are continued and completed without duplicating the previous week’s daily activities. ______________________________________________________________________________ Prepared by DepEd Club Team | Official Website: DepEdClub.com NOTICE: Freely shared to support teachers. Please do not sell, re-upload, redistribute or publish elsewhere.
Learning Objectives / Mga Tiyak na Layunin - Write the smaller knowledge, skills, or tasks from the competency that the learners will work on and be able to show by the end of the sessions. By the end of Session 1, learners can: • reconstruct the seven major electromagnetic spectrum regions in correct order without a complete reference chart; • explain the inverse relationship between wavelength and frequency and the general increase in photon energy with frequency; • distinguish accurate scientific statements from common misconceptions about electromagnetic radiation; and • use a claim-evidence- reasoning format to justify at least three corrections to an inaccurate spectrum diagram or statement. By the end of Session 2, learners can: • match telecommunications, household, industrial, scientific, and medical applications to appropriate electromagnetic spectrum regions; • explain how a relevant property or interaction with matter supports each selected application; • compare two technologies that use different electromagnetic waves to accomplish different purposes; and • recommend an appropriate application and precaution for a contextually relevant Philippine scenario. By the end of Session 3, learners can: • triangulate information from at least two credible secondary sources; • differentiate hazard, exposure, risk, benefit, and precaution in introductory radiation-safety discussions; • revise exaggerated, absolute, or unsupported claims into accurate evidence-based statements; and • produce a concise safety advisory that considers wave type, dose or intensity, duration, distance, shielding, and professional guidance where applicable. By the end of Session 4, learners can: • revise and complete an Electromagnetic Spectrum Media Poster or equivalent model using an accuracy-and-communication checklist; • present one application, one benefit, one harmful effect or risk, and one safety practice with supporting evidence; • respond accurately to peer or teacher questions and acknowledge the limitations of simplified models; and • demonstrate individual mastery through a new transfer case and a completed TWLH reflection. ______________________________________________________________________________ Prepared by DepEd Club Team | Official Website: DepEdClub.com NOTICE: Freely shared to support teachers. Please do not sell, re-upload, redistribute or publish elsewhere.
Learner Context / Konteksto ng Mag-aaral - Write your observations of your learners, and how they have been performing or responding to learning experiences recently. Include strengths, interests, and possible barriers to learning. (Example Only) Learners have already encountered the order of the electromagnetic spectrum, familiar applications, initial harmful- effects evidence, and poster planning during Week 7. Most can name common examples such as cellphone signals, remote controls, sunlight, and medical x-rays, but several still reverse the wavelength-frequency relationship, assume that every type of radiation is equally dangerous, or treat “non-ionizing” as meaning “incapable of harm under any condition.” Some groups need support explaining why a particular wave is suited to an application, paraphrasing source information, and communicating risk without exaggeration. Possible barriers include limited internet connectivity, uneven reading confidence, unfamiliar scientific vocabulary, visual-scale difficulties, and unequal participation in group design work. The Week 8 continuation therefore uses retrieval grids, misconception cards, teacher-curated print sources, evidence organizers, role rotation, oral and visual response options, large-print spectrum strips, peer reading, and structured poster conferences. Learning Experience / Karanasan sa Pagkatuto Continuation Learning Experience Design The four sessions continue and complete the Weeks 3-8 BOW cluster. Learners move from spectrum verification and misconception repair to property-to-function application analysis, source triangulation and responsible risk communication, and final public- information poster presentation. The design deliberately avoids mirroring Week 7: learners work with new cases, deeper explanations, revised evidence briefs, fact-checking routines, audience-specific communication, and independent transfer. Clear goals, teacher modeling, collaborative analysis, frequent low-stakes checks, ethical discussion, multiple representations, and reflection are embedded throughout. Learners may respond through writing, oral explanation, labeled diagrams, card placement, audio recording, or teacher-assisted scribing. Formative evidence guides immediate reteaching, source-reading support, enrichment, and readiness for the next BOW topic. ______________________________________________________________________________ Prepared by DepEd Club Team | Official Website: DepEdClub.com NOTICE: Freely shared to support teachers. Please do not sell, re-upload, redistribute or publish elsewhere.
Pre-Lesson / Bago ang Aralin - Describe how you will help the learners get ready for the lesson. Spectrum from Memory Teams receive seven blank spaces and reconstruct the spectrum from radio waves to gamma rays. They add arrows showing how relative wavelength, frequency, and energy change. Only after committing an answer may they consult a reference strip. Misconception Vote Learners respond Agree, Disagree, or Unsure to statements such as “All radiation is visible,” “Longer wavelength means higher frequency,” and “All non- ionizing radiation is always harmless.” They record one reason for a choice that will be revisited during the lesson. Application Without Labels Show pictures or short descriptions of a radio tower, Wi-Fi router, thermal camera, visible-light microscope, UV disinfection lamp, x-ray image, and radiotherapy unit. Learners identify the likely EM region and state what clue helped them decide. Property-to-Purpose Retrieval Complete the sentence: “This wave is suitable because it can…” Possible ideas include travel long distances, pass through or be absorbed by materials differently, transfer energy as heat, or damage targeted cells under controlled conditions. Fact, Fear, or Needs Evidence? Sort six statements into Supported, Misleading, or Needs More Evidence. Examples include “UV exposure can damage skin and eyes,” “Every x-ray causes immediate illness,” and “Medical imaging should be ordered and conducted by trained professionals.” Source Trail Learners inspect two short citations and identify the author or institution, date, evidence, and purpose. They predict which source is more dependable for a health or safety recommendation and explain why. Poster Accuracy Walk-Through Groups review their unfinished Week 7 poster or planning sheet using five checks: correct order, correct arrows, accurate application matching, balanced risk language, and visible source acknowledgment. Audience and Readiness Check Each group identifies its target audience and chooses one needed support: source card, spectrum reference strip, sentence starter, design template, peer reader, quiet conference, or teacher fact-check. Flow / Daloy ng Aralin - Describe the activities that you can implement in 1 or more sessions to meet the learning objectives. Apply the Learning Design Principles by thinking about 1. State the Continuation Goal State: “Today we will verify the electromagnetic spectrum and correct inaccurate explanations using evidence.” Learners restate the goal and identify the required evidence: 1. Make the Property-to- Function Goal Visible State: “We will explain not only which wave is used, but why its properties make it useful.” Review that applications depend on how waves are generated, transmitted, 1. Establish the Evidence and Ethics Goal Ask: “How can we communicate electromagnetic-radiation risks accurately without ignoring benefits or creating unnecessary fear?” Define hazard as the potential to 1. Confirm Final Performance Criteria Review the BOW-aligned Electromagnetic Spectrum Media Poster requirements: seven regions in correct order, clear wavelength-frequency trends, practical applications, benefits, ______________________________________________________________________________ Prepared by DepEd Club Team | Official Website: DepEdClub.com NOTICE: Freely shared to support teachers. Please do not sell, re-upload, redistribute or publish elsewhere.
how to: - make the objectives clear for the learners - guide learners before letting them try the task on their own - check the state of the learners’ well-being, understanding, and mastery over the lesson - connect today's new concepts to past competencies - encourage collaboration among learners - invite learners to reflect on why this matters to them - ensure inclusion for learners’ varied abilities, learning styles, and contexts correct order, correct directional relationships, and a reasoned correction. 2. Rebuild the Spectrum with Relative Trends Arrange radio, microwave, infrared, visible light, ultraviolet, x-ray, and gamma-ray cards. Add one arrow from long to short wavelength and another from low to high frequency. Explain that photon energy increases with frequency, while all electromagnetic waves travel at the same speed in a vacuum. 3. Model Claim-Evidence- Reasoning Correct the claim “Microwaves have a higher frequency than x-rays.” Evidence: in the standard spectrum order, microwaves occur between radio waves and infrared, while x-rays occur beyond ultraviolet. Reasoning: movement toward x-rays corresponds to shorter wavelength and higher frequency. Model how to correct without absorbed, reflected, detected, or allowed to penetrate materials. 2. Worked Comparison: Communication and Imaging Compare radio or microwave communication with x-ray imaging. Radio-frequency signals can be modulated to carry information and transmitted through antennas; x-rays pass through soft tissue more readily than dense bone, producing contrast on a detector. Emphasize that different purposes require different interactions with matter. 3. BOW-Aligned Philippine Applications Research Extension Pairs examine a new case common in Philippine life: broadcast communication, cellular or satellite links, weather monitoring, infrared thermal screening, UV disinfection, hospital x-ray imaging, gamma sterilization, or cancer radiotherapy. They complete a matrix: wave region, relevant property, cause harm, exposure as contact with the hazard, and risk as the likelihood and seriousness of harm under particular exposure conditions. 2. Source Triangulation Mini- Lesson Model how to compare two credible sources for agreement, scope, date, evidence, and limitations. Demonstrate paraphrasing a finding and recording the source rather than copying sentences. Explain that a single dramatic image or testimony is not enough to establish a general scientific claim. 3. Harmful Effects Evidence Brief - Revision Stage Groups return to or rebuild their Week 7 evidence brief using two teacher-curated sources. Topics may include UV-related skin and eye damage, heat injury from intense microwave or infrared exposure, unnecessary ionizing-radiation exposure, occupational exposure, or high-dose radiation effects. They revise harmful effects or risks, safety reminders, readable design, target audience, and acknowledged sources. 2. Accuracy and Audience Conference Before final production, groups meet briefly with the teacher or a trained peer checker. They answer: Is the order correct? Are the arrows correct? Does each application match the wave? Are risks stated with conditions rather than absolutes? Can the intended audience understand the language? 3. Complete and Refine the Media Poster or Visual Model Groups revise their Week 7 draft, add missing evidence, improve visual hierarchy, correct terminology, and cite sources. Low-cost poster paper, recycled cardboard, foldable spectrum strips, tactile models, or digital infographics are acceptable when they demonstrate the same science competencies. 4. Public Information Gallery and Oral Defense During a gallery walk, reviewers use criteria for scientific accuracy, ______________________________________________________________________________ Prepared by DepEd Club Team | Official Website: DepEdClub.com NOTICE: Freely shared to support teachers. Please do not sell, re-upload, redistribute or publish elsewhere.
shaming the learner who held the misconception. 4. Spectrum Error Clinic Groups inspect four new flawed diagrams or statements: reversed order, arrows pointing the same direction, visible light shown as the entire spectrum, and gamma rays labeled as longest wavelength. For each, they identify the error, correct it, and explain the scientific relationship. 5. Model Limits and Inclusive Representation Discuss that classroom strips are not drawn to actual scale and that the boundaries between named regions are conventional ranges. Learners may demonstrate understanding using cards, annotated arrows, oral explanation, large print, tactile markers, or a partially completed organizer. 6. Individual Exit Check Each learner completes one new spectrum diagram and writes two sentences: one application, benefit, limitation, and precaution. 4. Technology Selection Challenge Groups receive scenarios such as restoring communication after a typhoon, checking a suspected bone fracture, detecting heat loss, disinfecting an unoccupied treatment area, or sterilizing packaged medical supplies. They select an appropriate EM application and defend the choice using property-to- purpose reasoning. 5. Compare Benefits and Constraints Learners compare two solutions and identify why one may be more suitable, available, affordable, or safe in a given context. They distinguish scientific suitability from implementation concerns and avoid claiming that one technology is universally best. 6. Formative Synthesis Each learner explains one application in the frame: “The ___ region is used for ___ because ___. A benefit is ___. the brief to include the exposure, evidence, affected tissues or groups, uncertainties, and practical safety measures. 4. Risk-Communication Repair Shop Learners revise absolute statements such as “All radiation causes cancer,” “Medical x-rays are completely safe,” or “Natural means harmless.” Accurate revisions should state the wave type, exposure conditions, intended benefit, and need for appropriate controls or professional guidance. 5. Structured Stakeholder Decision Groups analyze a case involving a beneficial EM technology. Roles may include patient or family, health professional, engineer, school leader, worker, and regulator. Each group gives a recommendation supported by evidence, acknowledges a limitation, and proposes safeguards based on time, distance, shielding, equipment standards, or completeness, property-to- application reasoning, balanced risk communication, safety guidance, visual clarity, and source acknowledgment. Each group gives a two-minute explanation and answers one evidence question. 5. Individual Transfer Case Each learner receives a new scenario not used in group work and identifies the relevant EM region, application, benefit, risk or limitation, and one responsible-use recommendation. This provides individual evidence beyond the group product. 6. Complete the TWLH Chart and Generalize Learners revisit their Week 7 THINK and WANT entries, correct inaccurate ideas, and complete LEARNED and HOW we know. Generalize: electromagnetic technologies are selected according to wave properties and interactions with matter; responsible use requires credible evidence, appropriate controls, and ethical communication of both benefits and risks. ______________________________________________________________________________ Prepared by DepEd Club Team | Official Website: DepEdClub.com NOTICE: Freely shared to support teachers. Please do not sell, re-upload, redistribute or publish elsewhere.
about wavelength- frequency and one about frequency-energy. The teacher sorts responses for immediate remediation or enrichment. A reasonable precaution or limitation is ___.” Oral, diagrammatic, or written responses are accepted. supervised use as applicable. 6. Peer Fact-Check and Revision Peers highlight one well- supported statement, one claim needing clarification, and one safety recommendation that is actionable. Groups revise before submitting. Learners with reading barriers may use shortened source cards, audio support, or a group scribe. ______________________________________________________________________________ Prepared by DepEd Club Team | Official Website: DepEdClub.com NOTICE: Freely shared to support teachers. Please do not sell, re-upload, redistribute or publish elsewhere.
Learning Resources / Mga Kagamitang Panturo - List down the learning resources that will help you reach your objectives. Ensure that they are available and inclusive. - Include options and alternatives in case of emergencies. Learning Resources Blank and partially labeled EM spectrum strips; region cards; wavelength- frequency-energy arrows; misconception cards; rope or slinky; large-print or tactile markers; mini- whiteboards; Lesson Exemplar activity sheets; optional animation. Emergency/Inclusive Alternatives Use hand-drawn strips, oral ordering, tactile cards, color- coded arrows, and teacher- read statements. No internet or device is required. Learning Resources Application case cards; images or descriptions of radio towers, routers, remote controls, thermal cameras, UV lamps, x- ray units, radiotherapy, and sterilization; BOW-aligned Philippine applications matrix; textbook and curated print sources; optional presentation clips. Emergency/Inclusive Alternatives Use printed cases, familiar community examples, labeled drawings, oral reporting, or partner reading. Provide a reduced set of cases while keeping the same property-to- purpose objective. Learning Resources Two-source evidence packets; credibility and triangulation checklist; hazard-exposure-risk organizer; stakeholder role cards; risk-language repair statements; evidence brief template; chart paper; dictionaries or vocabulary cards. Emergency/Inclusive Alternatives Provide shortened, teacher- curated excerpts with key evidence highlighted. Permit oral synthesis, peer reader, audio support, or teacher- assisted scribing. Learning Resources Week 7 poster draft or planning sheet; final accuracy checklist; rubric; poster paper or recycled cardboard; rulers; markers; printed icons; source labels; sticky-note feedback; optional design or presentation software; TWLH chart. Emergency/Inclusive Alternatives Accept a one-page infographic, foldable spectrum strip, tactile model, oral presentation with cards, or individual visual organizer. All formats must meet the same content and evidence criteria. ______________________________________________________________________________ Prepared by DepEd Club Team | Official Website: DepEdClub.com NOTICE: Freely shared to support teachers. Please do not sell, re-upload, redistribute or publish elsewhere.
Opportunities for integration / Oportunidad para sa Integrasyon - Write down any possibilities to meaningfully another learning area, special topic, or technology. Write N/A if none. Mathematics and Scientific Modeling: Interpret inverse and direct relationships, relative scales, arrows, and ordered categories. Discuss why classroom spectrum diagrams are simplified models rather than literal scale drawings. ICT, Engineering, Health, and Disaster Communication: Connect telecommunications, remote sensing, thermal imaging, medical diagnosis, treatment, and sterilization to Philippine community needs. Emphasize that engineers select technologies according to properties, constraints, and safety requirements. Health Literacy, Ethics, and Media and Information Literacy: Evaluate source credibility, paraphrase responsibly, distinguish hazard from risk, consider affected groups, and communicate uncertainty without sensationalism. Reinforce informed decision-making and respectful stakeholder dialogue. Arts, Communication, and Sustainable Development: Apply visual hierarchy, concise language, accessible design, source acknowledgment, and low-cost or recycled materials to create a public-information product that promotes safe and beneficial use of technology. Assessment / Pagtataya What Will Be Assessed Evidence will show whether learners can accurately reconstruct and explain the electromagnetic spectrum; correct misconceptions using evidence; connect wave properties and interactions with matter to practical applications; compare benefits, constraints, and precautions; triangulate and paraphrase secondary-source information; distinguish hazard, exposure, and risk; communicate harmful effects responsibly; complete and defend the BOW-suggested Electromagnetic Spectrum Media Poster; and transfer understanding to a new individual case. Assessment is continuous and low-stakes through retrieval diagrams, misconception repair, application matrices, evidence briefs, source checks, oral explanations, peer review, poster presentation, TWLH reflection, and four new 5-item formative quizzes. Formative Assessment / Formative na Pagtataya - Create a task, activity or questions to evaluate learning and provide feedback every now and then. Include ways for learners to ask for guidance or support throughout each session. Task: Electromagnetic Spectrum Misconception Clinic Learners receive four flawed spectrum cards. For each card, they identify the inaccurate claim or diagram, provide the corrected version, and write or state a claim-evidence-reasoning Task: Philippine EM Technology Selection Matrix Groups analyze five new scenarios involving communication, health, household, industry, or community safety. For each, they identify the EM region, relevant property or interaction with matter, Task: Evidence Triangulation and Safety Advisory Using two credible secondary sources, groups revise a harmful-effects evidence brief. The final brief must identify the EM exposure, possible effect, supporting evidence, conditions that affect risk, vulnerable groups where Task: Final Electromagnetic Spectrum Media Poster and Oral Defense Groups complete and present the BOW-suggested media poster or equivalent visual model. It must show all seven regions in correct order; wavelength and frequency trends; at least five accurately matched applications; benefits; at ______________________________________________________________________________ Prepared by DepEd Club Team | Official Website: DepEdClub.com NOTICE: Freely shared to support teachers. Please do not sell, re-upload, redistribute or publish elsewhere.
- Remember to provide appropriate accommodations so all learners can demonstrate their understanding (e.g., varied response formats, small group options, visual or auditory supports explanation. Required evidence includes correct order, wavelength- frequency direction, frequency-energy relationship, or the limitation of a simplified model. Learners may annotate a diagram, place cards, explain orally, or use a partially completed organizer. Quick Check - 5-Item Formative Quiz Directions: Choose the best answer. 1. Which sequence is arranged from shortest wavelength to longest wavelength? A. Radio, microwave, infrared B. Visible, ultraviolet, x-ray C. Gamma, x-ray, ultraviolet D. Microwave, radio, gamma 2. When wavelength increases, frequency generally: A. decreases B. increases C. remains equal to wavelength D. becomes visible 3. Which region has a higher frequency than ultraviolet but a lower frequency than application, benefit, limitation, and precaution. Each learner then presents one scenario independently using the property-to-purpose sentence frame. Visual, oral, or written evidence is accepted. Quick Check - 5-Item Formative Quiz Directions: Choose the best answer. 1. Which EM region is commonly used for Wi-Fi and many satellite communication links? A. Microwave B. Ultraviolet C. X-ray D. Gamma ray 2. A thermal camera primarily detects: A. radio waves B. infrared radiation C. ultraviolet radiation D. x-rays 3. Why can x-rays produce useful images of bones? A. Bones and soft tissues absorb x-rays differently B. X-rays are sound waves C. X-rays are visible to the eye D. Bones broadcast radio signals 4. Which application is most directly associated with controlled ultraviolet radiation? A. FM broadcasting B. Bone imaging C. Surface or relevant, limitations or uncertainty, and an actionable safety recommendation. Groups also rewrite two misleading claims into accurate statements and cite their sources. Oral briefing, infographic, or one-page written output is acceptable. Quick Check - 5-Item Formative Quiz Directions: Choose the best answer. 1. Which statement best distinguishes hazard from risk? A. Hazard is the potential to cause harm; risk depends on the likelihood and severity under exposure conditions B. Hazard and risk always mean exactly the same thing C. Risk exists only when radiation is visible D. Hazard is determined by popularity 2. Which source is most appropriate for a medical radiation-safety claim? A. An anonymous post with no evidence B. A current publication from a recognized health or scientific institution C. A product advertisement least four risk, harmful-effect, or safety statements with appropriate conditions; one audience-specific recommendation; and acknowledged sources. Peers assess scientific accuracy, reasoning, balanced communication, readability, and source use. Each learner answers one new transfer question independently. Quick Check - 5-Item Formative Quiz Directions: Choose the best answer. 1. Which poster statement is correct? A. Wavelength generally decreases from radio waves toward gamma rays B. Frequency decreases from radio waves toward gamma rays C. All regions have the same energy D. Only visible light is electromagnetic radiation 2. A community needs long- distance wireless communication. Which reasoning is best? A. Use radio-frequency technology because signals can be generated, modulated, transmitted, and detected for communication B. Use x-rays because they image ______________________________________________________________________________ Prepared by DepEd Club Team | Official Website: DepEdClub.com NOTICE: Freely shared to support teachers. Please do not sell, re-upload, redistribute or publish elsewhere.
gamma radiation? A. Infrared B. X-ray C. Microwave D. Radio 4. Which statement is scientifically accurate? A. Visible light is the entire electromagnetic spectrum B. All EM waves have the same wavelength C. Photon energy generally increases as frequency increases D. Gamma rays have the longest wavelength 5. Why should a classroom spectrum strip be described as a model? A. It may simplify enormous differences in wavelength and frequency B. It proves all regions have equal widths C. It shows that EM waves travel at different speeds in a vacuum D. It removes the need for evidence Answer Key: 1-C; 2-A; 3-B; 4-C; 5-A. air disinfection using appropriate equipment D. TV remote control 5. Which pairing is correct? A. Gamma rays - radio broadcasting B. Infrared - remote control or thermal sensing C. Radio waves - bone imaging D. Visible light - cancer radiotherapy Answer Key: 1-A; 2-B; 3-A; 4-C; 5-B. only D. A fictional story 3. Which revision is most scientifically responsible? A. “All radiation is deadly.” B. “Medical x-rays can never cause harm.” C. “Risk depends on the radiation type and exposure, so justified procedures and appropriate protection are important.” D. “Natural radiation is always harmless.” 4. Excessive ultraviolet exposure can contribute to: A. skin and eye damage B. improved radio reception C. lower frequency of sunlight D. stronger Wi-Fi signals 5. Which set contains common radiation-protection principles where applicable? A. Time, distance, and shielding B. Brightness, color, and brand C. Speed, mass, and acceleration D. Taste, odor, and texture Answer Key: 1-A; 2-B; 3-C; 4-A; 5-A. bones C. Use gamma rays because they have high energy D. Use ultraviolet because it causes fluorescence 3. Which is the best risk statement for a public poster? A. “Radiation is always safe.” B. “Radiation is always deadly.” C. “Benefits and risks depend on the wave and exposure; follow evidence-based safety guidance.” D. “No precautions are ever needed.” 4. Which action best strengthens the credibility of the poster? A. Listing recognized sources for health and science claims B. Using the largest possible title only C. Removing all explanations D. Copying an unsigned online claim 5. A patient is advised to undergo a medically justified x-ray. Which response best applies the lesson? A. Refuse all medical imaging because all radiation is identical B. Follow professional guidance, ask relevant questions, and use the procedure with established safety controls C. Repeat the scan for curiosity D. Stand near the equipment without instruction ______________________________________________________________________________ Prepared by DepEd Club Team | Official Website: DepEdClub.com NOTICE: Freely shared to support teachers. Please do not sell, re-upload, redistribute or publish elsewhere.
Answer Key: 1-A; 2-A; 3-C; 4-A; 5-B. Ways Forward / Mga Susunod na Hakbang Actionable Next Steps • For learners needing spectrum support: reteach with a reduced three-step comparison, color-coded cards, opposing arrows for wavelength and frequency, and one familiar application per region before rebuilding the full spectrum. • For learners needing property-to-application support: use a guided table with the prompts “What must the technology do?” and “Which wave interaction makes that possible?” before asking for independent explanation. • For learners developing source skills: provide two short curated sources, highlight evidence sentences, model paraphrasing and source recording, and conference on one claim at a time. • For learners meeting expectations: assign new mixed application-risk cases requiring a justified recommendation, explicit limitation, and source citation. • For learners ready for enrichment: investigate how dose is measured, compare two technologies within the same spectrum region, analyze a current public-information message for scientific accuracy, or design an audience-specific safety campaign. • Use exit diagrams, quizzes, evidence briefs, poster defenses, individual transfer cases, and TWLH reflections to decide who needs targeted remediation before the class proceeds to the next BOW topic. Extended learning opportunities / Mga Karagdagang Gawain - Suggest other learning experiences outside the classroom/class hours that learners may want to access to reinforce what they have learned, to spark their curiosities further, or that may provide them support in their areas of difficulty. Spectrum Error Hunt Find a textbook, poster, website screenshot, or teacher-provided diagram of the electromagnetic spectrum. Check the order and arrows. Record one accurate feature and one feature that may be simplified, unclear, or misleading. Learners without internet may use a printed sample. Technology Property Card Choose one device or service used at home or in the community. Identify the likely EM region, explain one property that supports its function, state one benefit, and add one limitation or responsible-use reminder. Do not dismantle or test devices unsafely. Family Fact-Check Ask a family member for one belief or question about sunlight, microwave ovens, cellphone signals, x-rays, or another EM technology. Verify the claim using a teacher- approved source and write a respectful evidence-based response. Avoid giving personal medical advice. Public Information Revision Improve one section of the group poster for a specific audience such as younger learners, families, or community members. Make the wording clearer, add a credible source, and explain how the revision improves scientific accuracy or accessibility. ______________________________________________________________________________ Prepared by DepEd Club Team | Official Website: DepEdClub.com NOTICE: Freely shared to support teachers. Please do not sell, re-upload, redistribute or publish elsewhere.
Reflections / Mga Pagninilay - Think about what you need to change for the next session based on what happened today. Is there something the learners are interested in exploring? - Are there some things you would like to share with your co-teachers, parents, or school leaders about your classroom experience? What would you like your instructional coach to help you with? (Example Only) Learners reconstructed the spectrum more accurately than in the previous week, but some still reversed the wavelength-frequency arrows or assumed that the classroom strip was drawn to scale. Before Session 2, I will display two large opposing arrows and revisit one claim-evidence- reasoning example. The misconception vote encouraged learners to reveal uncertainty without embarrassment, so I will retain this routine. (Example Only) Learners matched familiar technologies to spectrum regions well, yet several explanations named the device without connecting a wave property to its function. I will begin the next session with the question “What must this technology do?” and use a property-to- purpose sentence frame. The Philippine application cases increased engagement and may be shared with other science teachers. (Example Only) Groups identified credible sources more carefully, but a few risk statements remained absolute or fear-based. I will model the difference among hazard, exposure, and risk again and require each advisory to mention conditions and safeguards. I may ask the instructional coach for additional strategies in teaching paraphrasing and respectful scientific disagreement. (Example Only) Most final posters were accurate and visually clear, although some groups needed reminders to acknowledge sources or answer questions beyond memorized applications. Before the next BOW lesson, I will provide targeted remediation for learners who still confuse spectrum trends and enrichment for those interested in medical imaging, telecommunications, and radiation protection. Strong posters will be archived as models after their claims and citations are rechecked. Prepared by: Checked by: DepEd Club Team Official Website: DepEdClub.com ______________________________________________________________________________ Prepared by DepEd Club Team | Official Website: DepEdClub.com NOTICE: Freely shared to support teachers. Please do not sell, re-upload, redistribute or publish elsewhere.
______________________________________________________________________________ Prepared by DepEd Club Team | Official Website: DepEdClub.com NOTICE: Freely shared to support teachers. Please do not sell, re-upload, redistribute or publish elsewhere.
---------------------------------------------------- Teacher’s Reference Note: For sample response options that may help in completing this rubric, teachers may refer to the Rubric for Lesson Planning with Sample Response Bank here: Available Here! Rubric for Lesson Planning with Sample Response Bank for DepEd ILAW Format DLL These sample responses are guides only and should be revised based on the actual lesson plan. To open the link, hold Ctrl on your keyboard, then click the link above. ---------------------------------------------------- . . RUBRIC FOR LESSON PLANNING SELF-CHECK AND/OR PEER COACHING I can say that in my lesson plan… Yes Not Yet Why?/ What will make it better? Intentions are clearly stated, with appropriate learning competencies articulated. Intentions are evident across all sections, there is coherence. Learning experience is clear – another teacher can implement this lesson without additional explanation. Learning experience is well-designed, with intentionally embedded Learning Design Principles. Learning experience maximizes available opportunities for integration. Learning experience is inclusive, provides opportunities to support learners with disabilities, barriers, and unique contexts. Assessment strategies are integrated throughout the session to see learners’ progress or if they need support. Assessment strategies generate evidence if learning is successful. The following interventions are actionable, providing ways to extend or adjust learning based on reflections. ______________________________________________________________________________ Prepared by DepEd Club Team | Official Website: DepEdClub.com NOTICE: Freely shared to support teachers. Please do not sell, re-upload, redistribute or publish elsewhere.
Notes for my instructional coaching session: ______________________________________________________________________________ Prepared by DepEd Club Team | Official Website: DepEdClub.com NOTICE: Freely shared to support teachers. Please do not sell, re-upload, redistribute or publish elsewhere.