Before you start the Interactive Activity, read the following questions, and keep them in mind as you work:
Can you describe the process you used to find the area of one of the triangles?
Did you use a similar or different strategy to find the area of the other triangles? How was it similar or different?
Can you describe a method that would work for all triangles?
After you've finished exploring the activity, consider these questions:
Describe the process you used for finding the area of each figure. Can you describe a general rule that would work for finding the area of any dot-paper figure, regardless of its shape?
Would your explanation be sufficient for someone else to solve the problems without referring to each individual case?
What forms of communication did you use in the process of solving the problems and in sharing your thinking and understanding with others?
