Grade 4 · Math
Goal
Find the perimeter and area of rectangles, and use them to solve real problems.
You'll need
Scissors, a glue stick, and crayons.
Help with the hands, not the answer
Add these words to the student's AAC device before the lesson
perimeter, area, length, width, rectangle, around, inside, add, multiply, square, feet, fence, side
Words from the check are left out on purpose.
What's in this packet
Standards the check measures
CA Common Core Math 4.MD.3: Apply the area and perimeter formulas for rectangles in real-world and mathematical problems. For example, find the width of a rectangular room given the area of the flooring and the length, by viewing the area formula as a multiplication equation with an unknown factor.
These are California's standards. Outside California, check the code and wording against your state's framework before citing them in an IEP.
Activity answers
Color the answer. Find the area of 5 by 3. 15 square feet. Which one shows perimeter? Distance around.
Perimeter or area?. Perimeter: Fence around a yard; Frame around a picture; Walk around a park. Area: Carpet on a floor; Grass in a yard; Paint on a wall
Find the area. 1. Measure both sides 2. Multiply the two numbers 3. Write the square units
How big is it?. 5 by 2: 10 square units. 3 by 3: 9 square units. 3 by 2: 6 square units
Parts of a rectangle. Top: length. Left: width. Bottom: area. Right: perimeter
Perimeter is the distance around a shape. A fence around a yard shows the perimeter. To find it, add the lengths of all the sides.
A yard that is 5 feet long and 3 feet wide has four sides. Its perimeter is 5 + 3 + 5 + 3, which is 16 feet.
Area is how much space a shape covers. Carpet on a floor shows the area, and area is measured in square units. To find the area of a rectangle, multiply length times width. That yard has an area of 5 × 3, which is 15 square feet.
Color the right box.
Find the area of 5 by 3.
Which one shows perimeter?
Sort the cards.
Perimeter
Area
Cut out along the dashed lines
Put them in order.
Cut out along the dashed lines
Match each one to its area.
Cut out along the dashed lines
Label it. Color the squares inside.
Cut out along the dashed lines
How the student chose answers (mark one)
Independent, adult could not see
Independent, adult could see
With touch, a held device, or cues
Mark the last one if anyone touched the student, held anything for them, or cued them while they chose. Help with cutting or gluing after they chose doesn't count as support, but an adult who saw the choice means "adult could see."
Help after the student chose
Results
Date ____________ Check run by (role) ____________________
| Item | Standard | Student's answer | Right? |
|---|---|---|---|
| 1 | 4.MD.3 | ||
| 2 | 4.MD.3 | ||
| 3 | 4.MD.3 | ||
| 4 | 4.MD.3 | ||
| 5 | 4.MD.3 | ||
| 6 | 4.MD.3 |
Each question with four choices can be guessed right 1 time in 4. These 6 items are too few to conclude from alone. The on-screen report waits for 20 items at a level.
A class is planning a garden shaped like a rectangle. The garden will be 6 feet long and 4 feet wide. The class needs a fence to go all the way around it. The class also needs soil to cover the ground inside it, one square foot at a time.
Choose your answer, then color its box.
How many feet of fence does the class need?
How many square feet of soil does the class need?
Choose your answer, then color its box.
Why does the class add all four sides to plan the fence?
Another garden is 7 feet long and 2 feet wide. What is its area?
Choose your answer, then color its box.
A room has an area of 20 square feet and is 5 feet long. How wide is it?
A rectangle is 8 inches long and 3 inches wide. What is its perimeter?
Keep this away from the check, and use it only for scoring afterward.
| Item | Standard | Question | Answer |
|---|---|---|---|
| 1 | 4.MD.3 | How many feet of fence does the class need? | 20 feet |
| 2 | 4.MD.3 | How many square feet of soil does the class need? | 24 square feet |
| 3 | 4.MD.3 | Why does the class add all four sides to plan the fence? | A fence goes around the outside |
| 4 | 4.MD.3 | Another garden is 7 feet long and 2 feet wide. What is its area? | 14 square feet |
| 5 | 4.MD.3 | A room has an area of 20 square feet and is 5 feet long. How wide is it? | 4 feet |
| 6 | 4.MD.3 | A rectangle is 8 inches long and 3 inches wide. What is its perimeter? | 22 inches |