Finding the Circumference of a Circle

Finding the Circumference of a Circle
Finding the Circumference of a Circle
Finding the Circumference of a Circle
Finding the Circumference of a Circle

What's Included

  • Smart Notebooks Presentation
  • Interactive Excel File
  • Activ Inspire Flipchart
  • Lesson Plan
  • Microsoft PowerPoint Presentation
  • Differentiated Worksheet

Finding the Circumference of a Circle

Students learn about finding the circumference of a circle as a multiple of π and as a decimal correct to 3 significant figures.  As learning progresses students are challenged to find the perimeter of semi-circles and sectors.

At the start of the lesson students recap finding the perimeter of complex shapes using a right-angled triangle.  The plenary challenges students to apply their learning to a real work problem.

Differentiated Learning Objectives
  • All students should be able to find the circumference of a circle as a multiple of pi when the diameter is given.
  • Most students should be able to find the circumference of a circle to 3 significant figures.
  • Some students should be able to calculate the arc length of a sector.
Scheme of Work Link
Circles, Cylinders and Circular ShapesMaths lessons to engage and inspire.
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