Fold-and-Cut
1. One Straight Cut Equilateral Triangles
2. Haga's Theorem
3. One Straight Cut Triangles
4. Background Mathematics

5. One Straight Cut Polygons

6. 摺紙, 剪紙與多邊形的學習
7. One Straight Cut Alphabets

8. PowerPoint 2022/02/18
9. ClassWork 2022/02/18
10. Fold & Cut
