俄羅斯方塊

Notations
x : for translation[br]o : for rotation[br]smaller circle within the piece : for flipping
Discussions on Constructions
1. Two pieces (the green and the orange pieces) can be flipped. Which one do you prefer?[br]2. The sliding action of the flipped piece is not as 'free' as the original piece. Why?[br]3. Is/Are there any other way(s) in designing the flipping action?

幾何板上的等腰梯形

依照工作紙的指示分割下面的梯形
4S2 分割圖形 工作紙
學生 工作紙 樣本
幾何板上的圖形(範本)
https://www.geogebra.org/m/etqneant
The Math Learning Center - Free Math Apps
https://www.mathlearningcenter.org/resources/apps

面積題 A

Area Problem A

Teacher's Version
Student's Version
https://www.geogebra.org/m/yzk2wmg8

P4面積練習題一

題 5

題 5

Area Problem C

分割、填補、平移
工作紙

偏心的農夫?

Area&Perimeter worksheet 04

Equal Area Problem

Information