The Model Method for Upper Primary

The Model Method forUpper Primary Dr Yeap Ban Har banhar@sg.marshallcavendish.comMarshall Cavendish Institute Singapore Presentation slides are available at www.banhar.blogspot.com

The Model Method is Just One of Many Methods taught in Primary School

The Model Method

51st Day 250 – 40 = 2102nd Day 4 210 : 5 = ?3rd Day 4 4 250 42 + 16 = ?4th Day 4 4 4 Rosa made 58 paper cranes on the last day.5th Day 4 4 4 4

1st Day2nd Day 43rd Day 4 44th Day 4 4 4 2505th Day 4 4 4 46th Day 4 4 4 4 47th Day 4 4 4 4 4 48th Day 4 4 4 4 4 4 4

1+2+3+4+5+6+7+8+9=?1st Day There are 45 fours.2nd Day 4 45 x 4 = 180 10 units = 250 – 180 = 703rd Day 4 4 01 units = 70 : 10 = 74th Day 4 4 4 She made (7 + 9 x 4) = 43 paper cranes on the last day. 2505th Day 4 4 4 46th Day 4 4 4 4 47th Day 4 4 4 4 4 48th Day 4 4 4 4 4 4 4

Struggling Average AdvancedDraw the model for Draw the model for Draw the model forall 10 days. Or about 7 or 8 days. 3 or 4 days. Usingreduce the algebra.problems to 4 days.Or act the situationout using counters.

SamTerry 72Vanessa

36 years oldSamTerry 72Vanessa 36

Vanessa 72Terry

SamSamTerry 72Vanessa

PabloWynn ?Zena 100

Advanced Techniques

270110

2 units = 160 g 1 units = 160 g : 2 = 80 g The container weighs 270 110 g – 80 g = 30 g Using algebra x+ 3y = 270 x + y = 110110 So, 2y = 160 y = 160 : 2 = 80 x + y = 110 So, x = 30 The container weighs 30 g.

x y y y 270x y 110

boys 34girls

boys 68girls

boys 88 – 68 = 20girls

boysgirls

boys 2 girls units = 14 34 1 girls unit = 7girls 3 girls units = 21 21 girls wear spectacles. 34 – 20

Differentiated Instruction for Struggling and Advanced Learners

cookies cake 3,6 kg

cookies

cookiescookies

basketball soccer Answer: 60 basketball soccer Answer: 100

Try These Yourselves!

5 units = 60 1 units = 60 : 5 = 12 8 units = 8 x 12 = 80 + 16 = 96Number of women There are 96 people at the party.Number of menNumber of children

tunachicken 185

$1.107

Apples Pears

Strategies• Who is in the story? What is it about?• Read a sentence. Do something.• Leave out numbers in reading a sentence.• Are you sure? Is it easy?• Do more mental computations.• Can you explain this step? Maybe other people cannot understand it.

Basic Models include Part-Whole Model, Change Model and Comparison Model

Mathematics to develop visualization through bar models, number sensethrough mental calculation, and ability to manage information through word problems.

Parents coaching children are providing the ‘voice’ that eventually becomes the children’s own thinking.

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The Model Method for Upper Primary

by Jimmy Keng on Oct 24, 2011

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