The document discusses why the circle area formula works by having students color half a circle, cut it up, and rearrange the pieces into a rectangle to visualize how to calculate the area. The students found it challenging to understand the explanations and make the correct shapes.

1. Why does the circle area formula work? By Nathan Wright and Justin Dreyer Friday 6 th march

5. Solution

6. Circle cut and glued in to a rectangle shape

7. Thank you for watching