This semi-detailed lesson plan aims to teach students about the relationship between the brightness and distance of stars from Earth. The lesson will involve students observing stars using penlights and notebooks to record their brightness at different distances, representing how stars appear brighter when closer and dimmer when farther. They will then generalize that the farther away a star is from Earth, the lesser its apparent brightness appears to us. The lesson evaluates students' understanding of this relationship and assigns them to explain why the sun is considered the brightest star.

1. Semi-Detailed Lesson Plan in Mathematics 6
Name: Jane S. Ologuin
School: Nazareth ElementarySchool
District: SergioOsmeñaII District
I. Objective:Solve 2-3 step word problemsinvolvingany of the four fundamental operations
II. Subject Matter: Solving 2-3 step word problems involving any of the four fundamental
operations.
Reference: Mathematics in Everyday Life p. 45
PELC IA5b
Materials: sheets of blank Manila paper, crayons flashcards, drawing board or illustration
board
Value: accuracy
III. Procedure:
A. Preparatory Activities
1. Drill
Drill on the four fundamental using flashcards.
Review: (Group) place value of numbers
2. Motivation:
Strategy: relay game
B. Lesson Proper:
1. Presentation:
Problem opener:
Mang Ruben harvested a total of 11,380 kilograms of palay. He sold it to five
differentrice dealers.If each dealer received equal amounts, how many kilograms
did each one get? If one kilogram costs P25, how much did he get?
2. Discussion
a. What is asked in the problem?
b. What are the given facts?
c. What processes are involved?
d. What is the mathematical sentence?
(11,380/5) xP25=N
e. Solve the problem
f. What is the answer?
3. Generalization:
What steps should you follow when solving problems?
What is the most important thing to consider in problem solving?
3. Application.
Read and solve
An eggvendorbought600 eggsfrom the Solerfarm.She paidP28 perdozen. How
much did she pay for all the eggs?
IV. Evaluation:
Read and solve: There were 407 boys and 438 girls in San Isidro Central School who joined
the Alay Lakad. If 65 pupils rode in a bus, in going to the assembly area, how many buses
were hired?
V. Assignment:Readandsolve.The PTA donatedP39, 510 to the school to buy 15 typewriters,
if each typewriter costs P3, 000, how much was the school’s share?

2. Semi-Detailed Lesson Plan in Mathematics 6
Name: Jane S. Ologuin
School: Nazareth ElementarySchool
District: SergioOsmeñaII District
I. Objective:Round decimalsto the nearest tenths/ hundredths/thousandths
II. Subject Matter: Rounding decimals to the nearest tenths/hundredths/thousandths
Reference: Mathematics in Everyday Life p. 101-104
PELC II F 2.2
Materials: sheets of blank manila paper, flashcards
Value: speed and accuracy
III. Procedure:
A. Preparatory Activities
1. Drill on rounding off: mental computation
2. Motivation:
Agawan Panyo Game. (Involving decimals). Set the games and its rules to be
followed.
B. Lesson Proper:
1. Presentation:
Luis climbed a 483 meter hill. If there are 1000 meters in 1 kilometer, what part of
the hill didLuis climbed?Roundedtothe nearesthundredths, what number is this?
2. Discussion:
1. What is asked in the problem?
2. What are the given facts?
3. What is process to be used?
4. What is the mathematical sentence?
5. What other thing is asked in the problem?
6. Why is the difference 517 rounded to 500?
7. What rule did you know?
3. Generalization:
Add1 to the digit in the rounding place if the number to the right is 5 above. If it is
less than 5, round down and drop all the digits after the rounding place.
4. Application
Round off the following number.
1.) 6.540
2.) 7.35
3.) .3982
4.) .055
5.) .64
IV. Evaluation:
Round the following decimals to the nearest place value indicated.
1.) .36 2.) .823 3.)35.0453 4.).608 5.) 1.736
V. Assignment: round 85.81267 to the nearest place indicated.
Tenths_________ hundredths__________ thousandths__________________

3. Semi-Detailed Lesson Plan in Science 6
Name: Jane S. Ologuin
School: Nazareth ElementarySchool
District: Sergio OsmeñaII District
I. Objective:Observe the starsasto color,size andbrightness.
II. SubjectMatter:Stars,: TheirSize,ColorandBrightness
Reference:TMIntothe Future pp.153-154
Science andHealthVI,p.247
Materials:a pair of binoculars
Value:appreciate the worksof God
III. Procedure:
A. PreliminaryActivities:
1. Checkingof Assignment/review
What are the differentinstrumentsusedby astronomerstogatherinformation
aboutstars?
B. Developmental Activities
1. Motivation:
You have sometimeswatchedstarsat night. Whatare some of your observations?
2. Presentation
Observe the starsina clearnightsky.Do theyappearto twinkle?Whatmakesthem
twinkle?
What conclusionyoucanmake aboutstars?
3. Discussion/Analysis
a. The sun isa star.
b. Stars produce theirownlight.Those thatappear at nightdo not show the same
brightness. Some blink continuously,others flickerweakly.
4. ConceptFormation/Generalization
What characteristicsof the stars can be observed atnight?
5. Application
In termsof weathercondition,whatdoesastarrynightmean?
IV. Evaluation:
1. Besidesyellow,identifyothercolorof stars.(1-3)
2. Describe howstarsmay differasto size.
3. Describe howstarsdifferasto brightness.
V. Assignment:
Observe agroup of stars. Draw yourobservationinabondpaper.
1. In whatwaysstars differ?
2. Why dowe see starsonlyduringthe night?

4. Semi-Detailed Lesson Plan in Science 6
Name: Jane S. Ologuin
School: Nazareth ElementarySchool
District: Sergio OsmeñaII District
I. Objective:Describe the relationshipbetweenthe brightnessasseeninthesdistance of stars
fromthe earth.
II. SubjectMatter:Characteristicsof Stars
Reference:TMIntothe Future pp.1556-158
Science andHealthVI,p.248
Materials:penlights, notebook
Value:attentiveness
III. Procedure:
A. PreliminaryActivities:
1. Checkingof Assignment/Review
How isthe color of a star relatedtoitstemperature?
B. Developmental Activities
1. Motivation:
Why dosome stars seemto lookveryfaint?
2. Presentation
2.1.Activities:Pre-assignthe activities,one ortwodaysbefore classdiscussion)
3. Discussion/Analysis.
Distance affects the starsapparent magnitude.Otherstarsare veryfar away from
the earth. Although theirbrightnessisgreaterthanthatof the sun; we cannotsee
themduringthe daytime.The fartherawaythe star is fromthe earth,the lesseris
the apparentbrightnessthatwe see.
4. ConceptFormation/Generalization
How doesdistance affectthe brightnessof astar?
5. Application
Cite otherexplanationswhystarsappearindifferentbrightness?
IV. Evaluation:
Explaininone or twosentencesthe relationshipbetweendistance andbrightnessof a
star.
V. Assignment:
Explain: Whyo we considerthe sunas the brighteststar?