3rd Grade Finding Area Worksheets | Geometry - Free Printable

Problem Analysis:

The task involves finding the area of a rectangle by counting the number of unit squares it contains. The image shows a grid with a rectangle marked on it, and the goal is to determine the area of this rectangle.

Step-by-Step Solution:

#### Step 1: Identify the Rectangle
The rectangle is clearly marked on the grid. It spans a certain number of squares horizontally (length) and vertically (width).

#### Step 2: Count the Squares Along the Length
- The length of the rectangle is the number of squares it spans horizontally.
- By counting the squares along the top or bottom edge of the rectangle, we see that it spans 5 squares horizontally.

#### Step 3: Count the Squares Along the Width
- The width of the rectangle is the number of squares it spans vertically.
- By counting the squares along the left or right edge of the rectangle, we see that it spans 3 squares vertically.

#### Step 4: Calculate the Area
- The area of a rectangle is given by the formula:
\[
\text{Area} = \text{Length} \times \text{Width}
\]
- Here, the length is 5 squares, and the width is 3 squares.
- Therefore:
\[
\text{Area} = 5 \times 3 = 15
\]

#### Step 5: Verify the Calculation
- To ensure accuracy, you can count all the individual squares within the rectangle. There are indeed 15 squares in total.

Final Answer:

\[
\boxed{15}
\]

Explanation:

The problem requires understanding that the area of a rectangle can be found by multiplying its length and width. In this case, the length is 5 squares, and the width is 3 squares, resulting in an area of 15 square units. This method is efficient and ensures accuracy when working with grids.