This (updated) lesson is based around finding the perimeter of a semi circle.
Only covers semi circles.
Starter assumes both area and circumference of circles as well as parts of a circle. ( Definitions taken from NCETM glossary)
It has been updated to include example problem pairs. A differentiated task by gradually reducing scaffolded support.
Extension sees if learners can apply to a quadrant and three quarters of a circle.
Ends with a Same Structure different depth set of questions.
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Great presentation, good worksheet.
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