Area of Circles
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Objective
I can calculate the area of a circle given either the radius or the diameter.
Part 1 of 3
Warm-up video
Khan Academy · 4:02Vetted channel
We don't generate video — this one is by Khan Academy on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 3
Practice
7 questions
Define the terms "radius" and "diameter" in relation to a circle. How are they related to each other?
What is the formula for calculating the area of a circle? Explain what each variable in the formula represents.
Part 3 of 3
Exit ticket
Quick comprehension check
“A circular cookie has a diameter of 10 mm. What is the area of the cookie? A round table has a radius of 30 mm. What is the area of the table? A coin is shaped like a circle with a diameter of 20 mm. What is the area of the coin?”
Sample answer included in the free materials
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Teacher Guide
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Student Handout
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