I’d like to give my students a gift of the GAP ——Insights into Geometry, Area Diagram and Pattern appreciation

Insights into

Geometry

Area Diagram

Pattern

P5 P6 money, H: Area diagram

____ my solution using area diagram

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Numbers — H: Area Diagram

____ My solution via Area Diagram

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p6 money, H: area-diagram, area of triangle overlapping part (via justin)

P5 Average (an extension question by CCL) H: Area Diagram

James wrote a few numbers on a piece of paper and calculated the average of the value of these numbers.

If James wrote another, 10, on the paper, the average would be reduced by 1.

If he wrote the number 106 instead, the average would be increased by 3.

(a) How many numbers did he write on the piece of paper originally?

(b) What was the original average value?

Modified from 

http://cclmath.blogspot.sg/2013/09/p5-average-fr-max-taken-fr-nanyang-pr.html

____

p5 p6 money decimal H: area diagram (fr Eugene L)

p5, p6 numbers H: area diagram (fr ian)

Sides of Pentagon vs sides of Triangles — Area Diagram intro WS

P4, P5 numbers, money H: area diagram

___ my solution :

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p6 fractions, money (H: area diagram) (fr MBPS, via Enzo)

P5 whole number, exchange, H:model / area diagram (fr strive1 remedial WS)

P6 Average (H: area diagram)

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P5 decimals, H: area diagram (fr JZ)

P6 money, area diagram approach (fr Jacob )

P6 numbers, money, H: area diagram (fr Raidah)

P6 Average . H: area diagram

_______ my solution

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Solving a money problem using Area diagram

https://www.instagram.com/p/C6f5ig7RMTE/

https://www.instagram.com/p/C6f5ig7RMTE/

Area Diagram 2 --- dealing with decimals

P5 decimal, money H: Area Diagram (fr PCS PP)

https://www.instagram.com/reel/Cj2kFuDpWku/?igshid=NjZiMGI4OTY= 

p6 fraction . H: area diagram ( fr NYPS, via BT)