+ All Categories
Home > Documents > FROGS Inclusion and Home Learning Guide - AIMSSEC

FROGS Inclusion and Home Learning Guide - AIMSSEC

Date post: 03-Dec-2021
Category:
Upload: others
View: 1 times
Download: 0 times
Share this document with a friend
6
AFRICAN INSTITUTE FOR MATHEMATICAL SCIENCES SCHOOLS ENRICHMENT CENTRE (AIMSSEC) AIMING HIGH PATTERNS is the theme for this INCLUSION AND HOME LEARNING GUIDE This Guide suggests related learning activities for all ages from 4 to 17+ Just choose whatever seems suitable for your group of learners The FROGS PUZZLE was designed for a wide age range Primary and Secondary FROGS PUZZLE Five red-eye frogs and five orange frogs line up in a row with a space between them. They must change places. They can hop one frog over another frog or slide to an empty place next to them. Red-eye frogs can only move to the right Orange frogs can only move to the left How can they change places following these rules? Try the puzzle with 2 frogs on each side first, then with 3 frogs on each side … How many moves will it take? HELP Think about the order in which the frogs should move to avoid blocking in any of the frogs so that they can’t move. NEXT FROGS AND TOADS This is a competitive game for 2 players with almost the same rules as Frogs. Place some frogs at one end and some toads at the other end of a strip of cells with just one empty space between them. The rules for moving are the same as for frogs. The players take it in turn to move any one of the pieces. A player loses if he cannot move any of the pieces when it is his turn. When you have tried the puzzle with an equal number of frogs on each side, try it a number on one side different from the other side. Resources: Cut out paper frogs 2 colours.
Transcript

AFRICAN INSTITUTE FOR MATHEMATICAL SCIENCES SCHOOLS ENRICHMENT CENTRE (AIMSSEC)

AIMING HIGH

PATTERNS is the theme for this INCLUSION AND HOME LEARNING GUIDE

This Guide suggests related learning activities for all ages from 4 to 17+ Just choose whatever seems suitable for your group of learners

The FROGS PUZZLE was designed for a wide age range Primary and Secondary

FROGS PUZZLE

Fivered-eyefrogsandfiveorangefrogslineupinarowwithaspacebetweenthem. Theymustchangeplaces.

Theycanhoponefrogoveranotherfrogorslidetoanemptyplacenexttothem.

Red-eyefrogscanonlymovetotherightOrangefrogscanonlymovetotheleft

Howcantheychangeplacesfollowingtheserules?

Trythepuzzlewith2frogsoneachsidefirst,thenwith3frogsoneachside…

Howmanymoveswillittake?

HELP Thinkabouttheorderinwhichthefrogsshouldmovetoavoidblockinginanyofthefrogssothattheycan’tmove.

NEXT FROGS AND TOADS Thisisacompetitivegamefor2playerswithalmostthesamerulesasFrogs.Placesomefrogsatoneendandsometoadsattheotherendofastripofcellswithjustoneemptyspacebetweenthem.Therulesformovingarethesameasforfrogs.Theplayerstakeitinturntomoveanyoneofthepieces.Aplayerlosesifhecannotmoveanyofthepieceswhenitishisturn. Whenyouhavetriedthepuzzlewithanequalnumberoffrogsoneachside,tryitanumberononesidedifferentfromtheotherside.Resources:Cutoutpaperfrogs2colours.

2

3

INCLUSION AND HOME LEARNING GUIDETHEME: PATTERNS

Early Years and Lower Primary TrytosolvetheFROGSpuzzlebypretendingtobefrogs.Startbychoosing2peopletobered-eyefrogsand2peopletobeorangefrogs.Youneed5chairs.The2red-eyefrogssitatoneendandthe2orangefrogsattheotherendwithanemptychairinthemiddle.

. .

And

.

.

Red-eyefrogsmovethiswayandorangefrogsthisway.

Thefrogshavetochangeplaces

Allthefrogscaneitherhoportheycanslideintothenextspaceifitisempty.

.

Canyouandyourfriendssolvethispuzzle?Canyoufindouthowtofollowtherulesandmaketherightmovessothatyouchangeplaces?

Hereare6frogsthatyoucancutout.Canyousolvethepuzzlewiththepaperfrogsinthesamewayaswhenyouactedasfrogsinthegame?

Canyousolvethepuzzlefor3frogsoneachside?

4

Upper Primary Startbytryingtosolvethepuzzleandtofindtherightmovesfor5frogsononesideand5ontheotherasonpage1.Whenthisprovesdifficulttalkaboutproblemsolvingmethods.Inparticularworkonthesimplestversionoftheproblemwith2frogsoneachside.Thisisnotascriptforahomelearningsession,ratheritwouldbebesttoadaptthisplanaccordingtolearners’responses.• Ifyouhaveenoughpeopleactouttheproblemwith3girlfrogsand3boyfrogsand

7chairs,orfewerifyouhavefewerpeopleinyourgroup.• Ifthelearnersfinditdifficult,try2boyfrogsand2girlfrogsonthechairsand

makesureeveryoneunderstands therules.• Perhapstry2boyfrogsand3girlfrogsnext.• Thisiscollaborative,notcompetitive–everyoneshouldtrytohelptheplayersto

maketherightmovesoastosolvethepuzzle.• Whentheyknowwhattheyhavetodolearnerscantrythisinpairsusingcutout

paperfrogsorcounters.

Whenlearnershaveworkedoutthesequenceofmovessothattheycandothechange-overswithoutgettingstuck,suggestthattheyrecordtheirresultsinatableasbelow.Thinkaboutsimplecases:e.g.2boyand2girlfrogsFillinatableofresults.Howmanymoves?Howmanyhops?Howmanyslides?Isthereapattern?Canyouexplainthepattern?

Number of boy frogs

Number of girl frogs

Number of hops

Number of slides

Number of moves

1 2

2 2

2 3

3 3

3 4

4 4

4 5

5 5

Beforetheendofthesessionhaveawholegroupdiscussionaboutthestrategiesforsolvingthepuzzleandthenumberpatternsthatthelearnershavefound.

Onlygoasfarasthelearnersarecomfortablewith.Donottellthemtheruleorformula.Youcansuggestthattheymightliketoplaythegameagainjustforfunandtrytofindmorepatternsandanswers,andmaybearule.The‘rule’canbegiveninwords,itdoesnothavetobeinaformula.

5

Lower and Upper Secondary Forsecondarylearnersthisexerciseleadstowardsalgebra.Agoodanswerfromthelearnerswouldbeaformulainwordslike:

”‘youmultiplythenumberoffrogsofeachtypetogetthenumberofhops andyouaddthenumberoffrogsofeachtypetogetthenumberofslides”.

Someyounger‘highflyers’, andtheyear9learners,maybeabletoexpresstheformulaalgebraicallyandevengiveaproof.

• Witholderplayersintroducetheactivityby5boysand5girlsactingitout,withhelpfromthe class.

• Whentheyfindittoodifficultaskforsuggestionsforworkingontheproblem.

• Iftheplayershaveexperienceofproblemsolvingtheyshouldsuggesttryingsimplecases,ifnot theteacherwillneedtosuggestit(andpointoutthatthisisageneralstrategyforproblem solving).

Key questions • Canyoufindaformula(rule)inwordsforthenumberofhops?• Canyoufindaformula(rule)inwordsforthenumberofplacesmoved?• Canyoufindaformula(rule)inwordsforthenumberofslides?• Canyoufindaformula(rule)forthenumberofmoves?• Canyouprovetheformulaalwaysworks?• Canyoufindaformulainsymbols?EdouardLucas(1842-1891)inventedthispuzzlewhichisalsoknownastheLucaspuzzle.HewasaFrenchmathematician,wellknownforhisinventionsofmathematicalpuzzlesandrecreations,andhealsoinventedtheTowerofHanoipuzzle.https://mathshistory.st-andrews.ac.uk/Biographies/Lucas/

SOLUTION TheformulaforthenumberofmovesforRred-eyefrogsononesideandGorangefrogsontheotherisR+G+RG.

ThisisR+GslidesandRGhops.

Proof

Eachfrogmusthopexactlyonceoverallthefrogsoftheothertype(orbehoppedover)so thereareRGhops.

TheRfrogsononesidemustmove(G+1)placesinonedirectionandGfrogsontheothersidemustmove(R+1)placesintheotherdirection.SothetotalnumberofplacesmovedisR(G+1)+G(R+1)=R+G+2RG.

Witheachhopafrogmoves2placessowithRGhopsthefrogsmoveatotalof2RGplaces.ThenumberofplacesmovedisR+G+2RGsothereare(R+G)slides.

6

Why do this activity?Patternsareattheheartofmathematicsand,inthisactivity,learnersdeveloptheirproblemsolvingskills.Theproblemstosolvearefirsttofindapatternofmovesthatwillsucceedinthe2setsoffrogsswappingplaces,thensecondlytofindnumberpatternsinthenumbersofmovesandthirdlytofindaformula(orrule)thatgivesthenumberofmovesasafunctionofthenumbersofeachtypeoffrog.Thephysicalengagement(peoplemathsactivity)promoteskinaestheticlearning.Iflearnersworkinpairsandsmallgroupstheydeveloptheircommunicationandreasoningskillsthroughdiscussion.Usingatabletorecordresultshelpslearnerstoworksystematically.

Learning objectives Indoingthisactivitystudentswillhaveanopportunityto:• developlogicalreasoningandproblemsolvingskills;• developcommunicationskillsthroughtalkingroupsandasaclass;• (forolderlearners)practisedescribinganumberpatterninanalgebraicformula.

Generic competences Indoingthisactivitystudentswillhaveanopportunityto:• thinkmathematically,reasonlogicallyandgiveexplanations;• thinkflexiblyandapplyknowledgeandskills;• interpretandsolveproblems;• collaborateandworkwithapartnerorgroup.

Follow up FROGS AND TOADS

Thisisacompetitivegamefor2playerswithalmostthesamerulesasFrogs.Placesomefrogsatoneendandsometoadsattheotherendastripofcellswithjustoneemptyspacebetweenthem.Therulesformovingarethesameasforfrogs.Theplayerstakeitinturntomoveanyoneofthepieces.Aplayerlosesifhecannotmoveanyofthepieceswhenitishisturn.

GototheAIMSSEC AIMING HIGH websiteforlessonideas,solutionsandcurriculumlinks:http://aiminghigh.aimssec.ac.zaSubscribetotheMATHS TOYSYouTubeChannelhttps://www.youtube.com/c/mathstoysDownloadthewholeAIMSSECcollectionofresourcestouseofflinewith

theAIMSSECAppseehttps://aimssec.appFindtheApponGooglePlay.


Recommended