Grade 3 Unit 2
Lesson 10: Solve Area Problems
CC BY 2021 Illustrative Mathematics®
Grade 3 Unit 2
Lesson 10: Solve Area Problems
CC BY 2021 Illustrative Mathematics®
Find the value of each expression mentally.
5 x 2
6 x 2
5 x 6
6 x 6
Noah is painting a wall in a community garden. The wall is shaped like a rectangle. A diagram of the wall is shown here.
Paint is sold in 3 different sizes:
A small container will cover 3 square meters.
A medium container will cover 10 square meters.
A large container will cover 40 square meters.
What should Noah buy? Explain your reasoning.
Elena is planning how to use her rectangular space in the community garden. She needs a space that is
at least 20 square feet to fit her plants. She has enough soil for a garden that is 30 square feet. The space she has available has to be 3 feet on one side.
What are the possible sizes for her garden?
Create a poster to show your thinking. Organize it so it can be followed by others.
As you look at the posters with your group:
Describe how another group solved the problem in a different way than your group did.
As you look at the posters with your group:
Write three things you saw that helped you understand how other students solved the problem.
Kiran bought two pieces of fabric. The black fabric is 9 yards by 2 yards. The purple fabric is 4 yards by 5 yards. Which piece of fabric has the larger area? Explain or show your reasoning.
