A Divisibility Game - Identify the Spy
mathemagic
my favorite 4B students[br]2021/11/08 & 10
A smart observation, "9-4=5; leaving 8 behind!"
2021/11/12 4A
數學魔術/魔法
[justify]bb discussion[/justify]
worksheet
References
1. 孟繁學(2005)《數學魔術：教你神機妙算未卜先知》香港：明天出版社。[br]2. 孟繁學(2006)《數海奇觀：向你展示魔幻謎題數海風雲》香港：明天出版社。[br]3. Martin, G. (1999), [i]Mental magic: surefire tricks to amaze your friends[/i], Sterling Pub. Co.[br]4. Number Pieces https://apps.mathlearningcenter.org/number-pieces/[br]5. Base Ten Blocks https://www.didax.com/apps/base-ten-blocks/[br][br]