What this lesson teaches
Circle parts and properties.
Math in Action
Circle Parts Explorer
Identify and measure all parts of a circle!
Duration25 min
Age GroupAges 11–14
DifficultyIntermediate
SubjectMath
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What you need
How the activity runs
The learning connection
Precise technical vocabulary must be actively produced (labelled, defined, used) rather than passively recognised to be retained. Drawing and labelling a circle from scratch means students generate every term, creating production-level vocabulary rather than mere recognition.
Try it with your learner
1. Draw circle with compass. 2. Mark centre. 3. Draw radius. 4. Draw diameter. 5. Measure circumference.