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Grade 3 Geometry — Durable Learning Test
Problem: Perimeter of a Square
What is the perimeter of a square with sides of 5 cm?
Think: a square has 4 equal sides.
Before choosing an answer, explain how you find the perimeter of a square.
Choose your answer:
Hint:
Multiply the side length by 4.
Explanation:
A square has 4 equal sides.
5 cm x 4 = 20 cm.
Final answer: 20 cm.
AI Feedback:
If student chose 20 cm: Correct — 5 x 4 = 20.
If student chose 15 cm: Too small — that's 3 sides, not 4.
If student chose 25 cm: Too large — that would be 5 sides.
If student chose 10 cm: Too small — that's only 2 sides.
Reflection:
Why is finding the perimeter of a square easy?
