Area Builders Worksheet
Math Lab • Measurement & Area Whole Squares Counting
Area Builders
Count the square units to calculate the area of each rectangle.
Name:
Date:
1
Key Idea: Area is the number of square units inside a shape.
Each grid box = 1 square unit. Count rows and columns or count every whole square!
= 1 sq unit
1 Part 1: Count the Whole Squares in Each Rectangle
Write your answers on the blanks
Rectangle A Grid scale: 1 box = 1 sq unit
1 2 3 4
Number of rows: Squares per row:
Total Area: sq units
Rectangle B Grid scale: 1 box = 1 sq unit
Number of rows: Squares per row:
Total Area: sq units
Rectangle C Grid scale: 1 box = 1 sq unit
Number of rows: Squares per row:
Total Area: sq units
Square D Grid scale: 1 box = 1 sq unit
Number of rows: Squares per row:
Total Area: sq units
2 Part 2: Think & Compare
1. Order from Least to Greatest Area:
< < <
(Write shape letters A, B, C, or D)
2. Area Comparison:
How many more square units does Square D have than Rectangle A?
Equation: = sq units
Architect Workshop • Grid Paper Design & Count
Area Grid Workshop
Draw rectangles of whole squares on the grid, then record your work below.
Name:
Score:
! Drawing Challenges: Outline and label each rectangle on the grid paper.
Rectangle R1:
Area = 8 sq units
Rectangle R2:
Area = 18 sq units
Square S1:
Area = 9 sq units
Your Choice (C1):
Area = 20 sq units
← 1 unit per square → Count whole squares only
Area Calculation Record Table Verify your drawn rectangles by counting
| Shape | Length (Units across) | Width (Units down) | Counting Strategy (Rows × Columns) | Total Area |
|---|
| R1 | | | | 8 sq units |
| R2 | | | | 18 sq units |
| S1 (Square) | | | | 9 sq units |
| C1 (Choice) | | | | 20 sq units |
Think About It: Can two different rectangles have the exact same area?
Yes No
