AREA
100
What is the area of a rectangle with a length of 6 units and a width of 3 units?
👉 Answer: 18 square units
🧠 Annotation:
Area = length × width
100
What is the perimeter of a rectangle with side lengths 7 units and 3 units?
👉 Answer: 20 units
🧠 2(7 + 3)
100
Which measurement tells how much space is inside a shape?
👉 Answer: Area
100
A garden is 6 units long and 4 units wide.
What is the area of the garden?
👉 Answer: 24 square units
100
Which rectangle has the greater area?
a. 3×8
b. 4×6
👉 Answer: 4×6 (24)
200
What is the area of a rectangle with a length of 9 units and a width of 2 units?
👉 Answer: 18 square units
200
What is the perimeter of a rectangle with side lengths 5 units and 6 units?
👉 Answer: 22 units
200
Which measurement tells the distance around a shape?
👉 Answer: Perimeter
200
A fence goes around a yard that is 7 units by 3 units.
What is the perimeter?
👉 Answer: 20 units
200
Which rectangle has the greater perimeter?
a. 3×8
b. 4×6
👉 Answer: 3×8 (22 vs 20)
300
Which rectangles have an area of 16 square units?
a. 4 by 4
b. 2 by 8
c. 1 by 16
d. All of the above
👉 Answer: d (All of the above)
🧠 Annotation:
All are factor pairs of 16
300
A rectangle has a perimeter of 28 units. Two sides are 10 units each.
What are the other two sides?
👉 Answer: 4 units each
🧠 10 + 10 + 4 + 4 = 28
300
Can two rectangles have the same area but different perimeters?
👉 Answer: Yes
🧠 Example: 4×4 and 2×8
300
Kyndal is tiling a floor that measures 5 units by 5 units.
How many square units will she cover?
👉 Answer: 25 square units
300
A rectangle has an area of 36 square units.
List all possible whole-number side lengths.
👉 Answer:
1×36, 2×18, 3×12, 4×9, 6×6
🧠 Factor pairs
400
A rectangle has an area of 30 square units. One side is 5 units.
What is the missing side length?
400
A rectangle has an area of 30 square units. One side is 5 units.
What is the missing side length?
400
Which rectangle could have a perimeter of 24 units?
a. 6 by 6
b. 8 by 4
c. 10 by 2
d. All of the above
👉 Answer: d (All of the above)
400
Which rectangle has a greater perimeter?
Shape A: 5×5
Shape B: 2×12
👉 Answer: Shape B
🧠 20 vs 28
400
Barry is building a rectangular pen with a perimeter of 26 units. Two sides are 9 units.
What are the other two sides?
👉 Answer: 4 units each
🧠 9 + 9 + 4 + 4 = 26
400
A student says:
“If two rectangles have the same perimeter, they must have the same area.”
Is this correct? Explain.
👉 Answer: No
🧠 Example:
⚠️ Misconception:
Students assume same perimeter = same area
500
Create two different rectangles that each have an area of 20 square units.
👉 Answer:
Examples: 4×5 and 2×10
🧠 Annotation:
Students generate factor pairs
500
Create a rectangle with a perimeter of 32 units.
👉 Answer:
Examples: 10×6 or 8×8
500
Explain why two shapes can have the same area but different perimeters.
👉 Answer:
Different side lengths change the distance around the shape
💬 Teacher Push:
“Can you give an example?”
500
Noel creates two rectangles with the same area of 18 square units.
One is 3×6. Create another and compare their perimeters.
👉 Answer:
Example: 2×9
Perimeters:
🧠 Annotation:
Same area, different perimeter
500
Create a rectangle that has:
👉 Answer: 4 × 6
🧠 Check both conditions:
Area = 24
Perimeter = 20
💬 Teacher Push:
“How do you know BOTH are true?”