A focused Grade 3 learning session for Counting Unit Squares for Area using visual models, worked examples, strategy guidance, and a short mastery check.
Student goal: I can count unit squares to find area.
Counting Unit Squares for Area means measuring how much flat space a figure covers by using equal-sized square units.
Question: This shape is made of unit squares on a grid. How many unit squares cover this rectangle?
Why it works: The grid shows \(3\) columns and \(2\) rows. \(3 \times 2 = 6\) unit squares.
Answer: \(6\) sq units
Question: This grid shows a shape made of unit squares. What is the area?
Answer: \(12\) sq units
Question: This rectangle is divided into unit squares. Which multiplication sentence shows the area?
Answer: \(5 \times 2 = 10\)
Question: A rectangle is covered with \(4\) rows of \(5\) unit squares. What is the area? You can count by rows: \(5 + 5 + 5 + 5\).
Why it works: Count by rows: \(5 + 5 + 5 + 5 = 20\) unit squares. This is one way to count area.
Answer: \(20\) sq units
Counting Unit Squares for Area becomes easier when students connect the question to a model, use clear steps, and explain why the answer fits.
Area means every square unit inside the figure.
Use scratch paper. The explanation matters more than simply seeing whether the choice is correct.
A rectangle is covered with \(4\) rows of \(5\) unit squares. What is the area? You can count by rows: \(5 + 5 + 5 + 5\).
Answer C: \(20\) sq units
Count by rows: \(5 + 5 + 5 + 5 = 20\) unit squares. This is one way to count area.
This shape is made of unit squares on a grid. How many unit squares cover this rectangle?
Answer A: \(6\) sq units
The grid shows \(3\) columns and \(2\) rows. \(3 \times 2 = 6\) unit squares.
A grid shows a T-shaped figure made of unit squares. You can count by columns or by rows. How many unit squares form this T-shape?
Answer B: \(7\) sq units
Count the top row: \(5\) squares. Count the center column below: \(2\) more squares. Total: \(5 + 2 = 7\) unit squares.
This grid shows a shape made of unit squares. What is the area?
Answer A: \(12\) sq units
\(4\) columns \(\times\ 3\) rows \(= 12\) unit squares.
A rectangular garden on a grid is \(2\) meters long and \(3\) meters wide. Count by skip-counting: \(3 + 3\). What is the area?
Answer D: \(6\) sq m (counted all squares)
Count by rows: \(3 + 3 = 6\) square meters. Distractor A and B count only one row. Distractor C adds the sides (perimeter idea).
This rectangle is divided into unit squares. Which multiplication sentence shows the area?
Answer A: \(5 \times 2 = 10\)
The rectangle has \(5\) units wide and \(2\) units tall. \(5 \times 2 = 10\) sq units.
A floor tile is \(1\) inch by \(1\) inch. A floor has \(8\) rows and \(6\) tiles in each row. What is the area?
Answer B: \(48\) sq in
\(8\) rows \(\times\ 6\) tiles per row \(= 48\) square inches.
A classroom is shaped like a rectangle. The length is \(9\) meters and the width is \(3\) meters. What is the area of the classroom?
Answer D: \(27\) sq m
Area \(= 9 \times 3 = 27\) square meters.
This grid shows a rectangle on unit squares. What is the area in square units?
Answer C: \(12\) sq units
\(6\) units wide \(\times\ 2\) units tall \(= 12\) unit squares.
A painting is \(4\) inches long and \(7\) inches wide. What is its area?
Answer B: \(28\) sq in
Area \(= 4 \times 7 = 28\) square inches.
This shape is made of unit squares arranged in rows. Count the total unit squares. What is the area?
Answer B: \(28\) sq units
\(7\) columns \(\times\ 4\) rows \(= 28\) unit squares.
