Copy of Area of a Circle: Revamped!

Interact with the app below for a few minutes. Then answer the questions that follow.
What do you notice? What do you see? What do you wonder?
How can we use what we see here to try to find the area of a circle?
Zatvori
– Elizabeth Leal, Tim Brzezinski

Informacija: Copy of Area of a Circle: Revamped!