1. The lesson aims to teach students about greenhouse gases and their effects on the atmosphere. Students will play a board game to learn how certain actions increase or decrease greenhouse gases. 2. In small groups, students analyze the sources and impacts of greenhouse gases. They identify actions that increase and decrease greenhouse gases in the atmosphere. 3. The top two groups then report their findings and discuss how to reduce pollutants based on the activities in their simulated atmosphere.

1. I. Objectives:
At the endof the lesson 75% the students achieved75% proficiencylevelin:
1. Identifyingactionsthatincrease andreduce the greenhouse gasesinthe atmosphere.
II. SubjectMatter:
Subject:Science 7
Topic:Greenhouse Effect
Materials:Visual Aids(pictures),Dice,Game board,Pen,Paper
References: Learner’sManual Grade 7, pp. 122 – 127
 http://www.slideshare.net/dencio501/deped-science-7-learners-module-part-
2?related=1
 http://www.abca.on.ca/downloads/GC_clean_air_game.pdf?phpMyAdmin=fa6
38e549ab1e05917617e02161cad78
 http://astroventure.arc.nasa.gov/teachers/pdf/AV-Atmoslesson-3.pdf
III. Procedure:
A. Preliminaries:Checkingof attendance andreview of previouslesson
B. Motivation:Letthe studentssupplythe correspondingname of the picturesasdepictedon
each picture gallery.Askthe followingquestions:
1. What do you thinkthe thirdpicture inour firstgalleryshows?
2. What do you thinkthe thirdpicture inour secondgalleryshows?
3. What do you thinkthe thirdpicture inour third galleryshows?
4. What do you thinkhappenedtothe planetearthinthe fourthgallery?
C. LessonProper:
C.1. Activity1.Cleanair game
 The studentswill formagroup of 10 members. Eachgroup shouldassigna
secretary,leaderanda reporter.
 Each group will take turnsto playthe cleanair game the group withthe cleanest
air will be declaredasthe winner.Theywillonlyhave 5 turnseach team.
C. 2. Analysis: In a ½ crosswise,eachgroupistaskedto determine the source of the
greenhouse gases,actionsthatincreasesandreducesthe greenhouse gasesinthe
atmosphere throughansweringthe followingquestions:
o What arethe benefits of greenhouse gases? What areits disadvantages?
o What arethe actions madethat increases the greenhouse gases in the atmosphere?
o What arethe actions madethat reduces the greenhouse gases in the atmosphere?
C.3. Abstraction:The teacherwill furtherexplainthe picturesdepictedonthe 4th
galleryof
pictureswiththe supportingdetailsfromeachreporterof the firsttwowinninggroup.
C.4. Application: The reporterfromthe first2winninggroupswill discusshow clean/dirtytheir
atmosphere isandwill supportthroughreportingthe activitiesthat cause the
increase/reduce of pollutantsintheiratmosphere.
IV. Evaluation:
In a ¼ sheetof paperanswerthe followingquestions:
1. Which of the followinggasesisnotharmful tothe environment?
a. O2 b. CO2 c. CFC d. CH4
2. What is the major role of the greenhouse gasinthe Earth’stemperature?
a. It makesthe Earth cool. b. It makes the Earth hot
c. It makesthe Earth normal d. None of the above
3. Whichof the followinghumanactivitiescanenhance the greenhouseeffect?
a. Burning of garbage b. Biking c. Walking d. Reforestation

2. 4. Which of the followinghumanactivitiescanreduce greenhouseeffect?
a. Tree planting b. Throwingof garbage anywhere
c. Burningof garbage d. Coal burning
5. Which of the followingactions canreduce greenhouse effect?
a. Cleanairact b. Deforestation
c. Burningof garbage d. Usingcleaningsolventsandotherpoisons
V. Assignment:
Research:http://www.livescience.com/37743-greenhouse-effect.html
Compare and contrastthe 2 pictures usingVenndiagram.Write yourobservationsina½
crosswise.
Preparedby: AlonaRose L. Jimenea
Date of demonstration:February19,2016
Grade 7 Dama De Noche
Lagao National HighSchool