Find the value of each expression mentally.

1. This rectangle represents space in a community garden. The shaded part has vegetables, and the unshaded part has flowers. Each grid square represents 1 square foot.

   

   What is the area of the whole space?

2. Design your own rectangular garden that has at least 2 parts. Find the area of each part of the garden and the area of the whole garden.

What do you notice? What do you wonder?

Find the area of this figure. Explain or show your reasoning. Organize your explanation so it can be followed by others.