1. Share Observations About Geometry

2. What I Know about Squares

3. What I Know about Rectangles

4. What I Know about Triangles

5. Compare and Classify Triangles Use two rulers to make an angle.

6. Compare and Classify Triangles Use two rulers to make an angle. Add a third line to create a triangle.

7. Compare and Classify Triangles Use two rulers to make an angle. Add a third line to create a triangle.

8. Compare and Classify Triangles Use two rulers to make an angle.

9. Compare and Classify Triangles Use two rulers to make an angle. Add a third line to make a triangle.

10. Compare and Classify Triangles Use two rulers to make an angle. Add a third line to make a triangle.

11. Compare and Classify Triangles Use two rulers to make an angle.

12. Compare and Classify Triangles Use two rulers to make an angle. Add a third line to make a triangle.

13. Compare and Classify Triangles Use two rulers to make an angle. Add a third line to make a triangle.

14. Classify Triangles Big angle triangles

15. Classify Triangles Three sides equal triangles

16. Classify Triangles no big angle triangles

17. Classify Triangles Two sides equal triangles

18. Classify Triangles Square corner triangles

19. Classify Triangles All sides different triangles