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Ratio and Proportion Lesson Plan for Grade 5

This is one of my Lesson plans in Mathematics for Grade 5.

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Ratio and Proportion Lesson Plan for Grade 5

  1. 1. A Detailed Lesson Plan in Mathematics 5 Student-Teacher:Rae Anne D.Sapuan I. Objectives: At the endof the lessonthe pupilsare expectedto: A. define ratioandproportion; B. identifythe ratioof the givenexample; C. solve forthe missingterm of the givenproportion:and D. value the importance of ratioand proportionthroughreal life wordproblems. II.SubjectMatter: A. Topic:“Ratio andProportion“ B. Reference:MathConnectionpp.254-256 C. Materials:PowerPoint,pictures,puzzles D. ValuesIntegration: value the importanceof ratioandproportioninour dailylife. III.Procedure: Teacher’s Activity Pupils’ Activity A. Preparation 1. Greetings Good morningclass! Please seatdown! So howare youthismorning? I’malsogood. Who are absentthismorning? VeryGood!So we have perfectattendance today. Before we start,I wantyou to be remindedfirstof our classroomrules.Sogive me ourfirstrule,yes Dayshaun! VeryGood!So letme see if you’re seatingdown properly. Now,what’sthe secondrule?Yes,Rein! Exactly!Soif youhave questionsorif youwantto answeryoumay raise yourhand inorderfor youto be recognize.Isthatclear? How aboutthe 3rd one?Yes, Thad! Yes!Especiallyif the teacheristalkinghere infront.So If I am talkinghere,whatwill youdo? Exactly!Sonextrule.YesArik? Andthe last one?YesRafaella Yes!Here in myclass I wantyou to respectone another.Soare the rulesclearto you? VeryGood! 2. Review So whatwas our previoustopic? VeryGood!So as a recap,divide this: 0150.0006.0 Good morningtooteacher! Thank youteacher. We’re goodteacher,how aboutyou? None teacher. Dayshaun:SitDownproperly. Rein:Raise yourhandif you wantto answer. Yes,teacher. Thad: Avoidchitchattingwithyourseatmate. Listen. Arik:Do not use youripadif it’snotnecessary. Rafaella:Respectyourteacherandyourclassmate Yes teacher. Divisionof Decimals 25 0150.0006.0 12_ 30 30 0
  2. 2. VeryGood!So is thisclearnowto you class? Good! B. Motivation Okaynowtake a lookat thispicture,whatcan you say? to VeryGood! Now howmanypineapplesare there? Yes! Howabout the boys? Exactly!Nowthisillustrationmeansthatthere are 4 Pineapplesfor5 boys.Whichof these twosetshasthe higherquantity? Verygood!How aboutthisone: What didyou see? Verygood!Noware theyproportional toeach other? Why? Verygood! C. Presentation Now,basedon thiswhatisour lessonforthismorning? Fraction?A while agowe compare the pineapplesand the boys,right?Iask you whichof those setshasthe higherquantity,sobasedonthat whatis our topic? Comparingfraction?Nowwhatdo youcall that term about comparisonof two quantities?Yousaidawhile ago that these fractionsare proportional toeachother. So what’sthe topic? Yes! Proportionand? Verygood!So our topicfor thismorningisall about “Ratioand Proportion” D. Discussion So howdo youdefine ratio? Yes! Ratioisthe comparisonof twoquantitiesbyan Indicateddivision. There are pineapples andboys teacher! 4 5 The boys fractions Yes! Because if youreduce theminlowestterm theybecome equal. 1 2 and 1 2 Fraction Comparingfraction Proportion ProportionandRatio Ratiois the comparisonof twoobjects/things. Yes,teacher. 9 18 5 10
  3. 3. For example: In a classroom,there are 25 boysand 27 girls.How will you compare the numberof boysto the numberof girls in the classroom? This isall aboutcomparingso youhave to use? VeryGood! So howwill Iwrite the ratioof boysand girlshere? VeryGood! That’sinthe colonform.We could also write ratioin fractionform.How? VeryGood! So: 25:27 Colonform 25 27 Let’shave anotherexample: What can yousay aboutthe illustration? Yes! There are varietyof fruits. So what fruitsdidyousee there? Yes exactly!So how manyapplesare there? How aboutthe orange? The banana? How aboutthe mango? VeryGood! Nowlet’sfindthe ratio incolon& fractionform of the followingfruits: 1. to 2. to 3. to 4. to 5. to Verygood!Now,innumbers2 and 5, theirratio can be reducedto theirLowesttermor to theirsimplestform by dividingthe numeratorandthe denominatorbythe same numberor by theirgreatestcommonfactor. So, is ratioclear toyou? Verygood!Nowletsgo to proportion.Howdoyou define proportion? Exactly! Let’shave thisexample. Ratio 25:27 25 27 There are fruits. Apple,Mango,Bananaand Orange 4 3 6 5 ColonForm FractionForm 1. 4:5 or 4 5 2. 3:6 or 3 6 3. 5:3 or 5 3 4. 3:4 or 3 4 5. 4:6 or 4 6 Yes teacher! A proportionis a pairof equal ratios. FractionForm
  4. 4. Debra preparedapitcherof juice forherfriends.She usedfour(4) glassesof waterfor eight(8) tablespoons of powderedjuice.The nextweek,she made another pitcherof juice but thistime,she usednine (9) glasses of waterfor eighteen(18) tablespoonsof powdered juice. Nowgive me the ratio for the 1st preparation. Verygood!How aboutthe ratiofor the second preparation? Exactly!Nowstudythe two ratios,are theyequal? How didyouknow? VeryGood! There are two waysof findingoutif the two ratiosare proportionornot: 1. bychangingboth ratiosto theirsimplestform; 4 8 = 1 2 9 18 = 1 2 2. bycross-multiplyingthe meansandthe extremes 4:8 = 9:18 or 4 8 = 9 18 Means 8 x 9 = 72 Extremes 4 x 18 = 72 Okay,let’shave thisexample: 2:6 = 3:9 Is thisproportionornot? You solve inyournotebook. Nowwhat if I’ll give youlike this 7 2 = 14 ? , howwill you findthe missingtermof the givenproportion? Verygood! Nowplease solve,Reyna! VeryGood! E. Drill and Practice Nowget yourmath notebookandanswerthe following.I’ll giveyou3 minutestoanswerthat. Let’spractice! Tell if the pair of ratiosis a proportionor not.Write P if proportionand NP if not. _________1.) 1:8 = 8:16 _________2.) 3:5 = 9:10 _________3.) 1:13 = 2:26 ________ 4.) 2:5 = 3:8 _________5.) 4:3 = 4:5 4:8 or 4 8 9:18 or 9 18 Yes! We reduce inlowestterm. Yes teacher.Because 2x 9 = 18 and6 x 3 = 18 so therefore theyare proportion. Crossmultiply. 7 2 = 14 𝑁 7 x N = 2 x 14 7N =28 N = 28 ÷7 N = 4
  5. 5. F. Application Nowyoudon’thave any questionsaboutfindingthe missingtermof a proportion? VeryGood!So nowlet’shave an activity,thiswouldbe the group 1, 2 and 3. Each groupwill be givenapuzzle. You needtoassemble thatinorderfor youto readthe wordproblemthatwas writtenthere thensolve ithere inthe cartolina.Then afterwardsexplainyourwork here infront.Is that clear? G. Generalization Okayagain,what isratio? VeryGood!How aboutproportion? Exactly!Nowfind the missingtermof thisN:7 = 8:2 We are able to compare almosteverythingand anythingaroundusby usingratio.Equate it to another ratioand you will have aproportion.Now,canyou applythe importance of proportionintooureveryday living?Canyouname some? Verygood! None teacher. Yes teacher! Ratiois the comparisonof twoquantities. Proportionisa pairof equal ratios. 2N = 56 N = 28 In bakingteacher.We use ratioto it. Like in1 cupof sugar youcan make 30 cookies.So1:30.
  6. 6. IV.Evaluation A. Give the ratioof the figuresbelow.Reduce totheirlowestterms. 1. to = ______ 6. to = ______ 2. to = ______ 7. to = _____ 3. to = ______ 8. to = _______ 4. to = _______ 9. to = ______ 5. to =______ 10. to = _______ B. Tell if the pair of ratiosis a proportionor not.Write P if proportionand NP if not. ______1.) 2:5 = 4:10 ______6.) 6:20 = 3:10 ______2.) 12:4 = 9:3 ______7.) 16:22 = 2:4 ______3.) 6:12 = 4:8 ______8.) 28:3 = 21:4 ______4.) 5:15 = 3:9 ______9.) 12:2 = 18:3 ______5.) 21:3 = 7:1 ______10.) 2:18 = 3:27
  7. 7. Evaluation( Answers) A.Give the ratio of the figures below.Reduce totheirlowestterms. 1. to = ______ 6. to = ______ 2. to = ______ 7. to = _____ 3. to = ______ 8. to = _______ 4. to = _______ 9. to = ______ 5. to =______ 10. to = _______ B. Tell if the pair of ratiosis a proportionor not.Write P if proportionand NP if not. ______1.) 2:5 = 4:10 ______6.) 6:20 = 3:10 ______2.) 12:4 = 9:3 ______7.) 16:22 = 2:4 ______3.) 6:12 = 4:8 ______8.) 28:3 = 21:4 ______4.) 5:15 = 3:9 ______9.) 12:2 = 18:3 ______5.) 21:3 = 7:1 ______10.) 2:18 = 3:27
  8. 8. V.Assignment Okay now,whatsymbol isthis%? Verygood!So for yourassignment,studyabout Percentage forournextlessontomorrow.Isthatclear? So that’sall for today,goodbye class! Percentsign. Yes teacher! Good bye andthank youteacher.

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