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The 'Addition Triangles'

作者：spkwan

主題：算術

2021/10/28 1E
'The Addition Triangles' https://www.geogebra.org/m/z4nwxwcq — 2021/10/28 1E 'The Addition Triangles' https://www.geogebra.org/m/z4nwxwcq

2021/11/17 1E
In how many ways can 12 pupils be divided into 2 groups? — 2021/11/17 1E In how many ways can 12 pupils be divided into 2 groups?

'Addition Triangle' 1

'Addition Triangle' 1

'Addition Triangle' 2

'Addition Triangle' 2

'Addition Triangle' 3

'Addition Triangle' 3

worksheet template

2021/12/09 1D

class discussion

A 1D boy's request

A 1D boy's request — ”Can you send the photo to my mom and let her have a look?” 2021/12/16

variations

1. Arithmogon Triangle Puzzle 1 https://s3-us-west-1.amazonaws.com/math-salamanders/Fun-Worksheets/Math-Puzzles/2nd-Grade/arithmogon-triangle-puzzle-2a.pdf 2. Arithmogon Triangle Puzzle 2 https://s3-us-west-1.amazonaws.com/math-salamanders/Fun-Worksheets/Math-Puzzles/2nd-Grade/arithmogon-triangle-puzzle-2b.pdf 3. Magic Triangles https://aritgram.com/wp-content/uploads/2021/04/magic-triangles-with-boards.pdf https://mathforlove.com/lesson/magic-triangles/ https://nrich.maths.org/1983 https://www.ggbm.at/t3mqbkyb

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