Problem Solving
Can you problem solve using what you’ve learned about creating shapes?
Goal:
Goal:
Practice!
Goal: Apply what you have learned about creating shapes to solve word problems.
Can you solve this word problem about area? Use these problem-solve steps to answer each question below.
Madelyn needs a space for her boa constrictor to move around. She wants to map out a rectangle in her room with an area of 28 square units. One side of the rectangle will have a length of 4 unit squares. Use graph paper to map out this rectangle.
Word Problem Solving Steps
- Read the problem.
- Look for important information.
- Graph the shape.
- Check your answer.
Read the Problem
Read the word problem once more to understand what is being asked.
Madelyn needs a space for her boa constrictor to move around. She wants to map out a rectangle in her room with an area of 28 square units. One side of the rectangle will have a length of 4 unit squares. Use graph paper to map out this rectangle.
Look for important information.
Here is the information we need to know:
- We need to make a rectangle on graph paper.
- The rectangle will have an area of 28 units\({\Large^2}\)
- One side of the rectangle will be 4 unit squares long.
Graph the shape.
Use the important information to create Madelyn's rectangle. Look at the image below for some extra help!
After you draw your rectangle, click the Show Me button to check your work.
Check your answer.
Now let’s check our answer! This rectangle has 7 rows with 4 unit squares in each row. Can you find the area using repeated addition or skip-counting?
If you used repeated addition, your addition sentence may look like this:
\({\Large4 + 4 + 4 + 4 + 4 + 4 + 4 = 28\;\text{units}^2 }\)
If you used skip-counting, your sequence may look like this:
\({\Large4, 8, 12, 16, 20, 24, 28\; \text{units}^2}\)
Great job! This rectangle has a length of 4 unit squares and an area of 28 units\({\Large^2}\) . Now Madelyn can map out a space in her room for her boa constrictor!
