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.
Lesson Downloads
Download Lesson Plan Download PowerPoint Download Notebook Download Flipchart Download WorksheetDownload Interactive Excel File
Scheme of Work Link
Circles, Cylinders and Circular Shapes SoW 
IMMEDIATE DOWNLOAD

Mr Mathematics Blog

Teaching Reciprocals of Numbers and Terms

To introduce teaching reciprocals of numbers and terms I begin the lesson explaining that everything has an opposite.  The opposite of shutting a door is to open it.  The opposite of saying hello is to say goodbye.  Numbers have opposites too we call them reciprocals. Teaching Reciprocals of Numbers and Terms To start the lesson […]

Surface Area of Cylinders

When I teach how to find the surface area of cylinders I like to add a constant level of challenge and enjoyment to the lesson.  Rather than repetitively calculating the surface area of a cylinder I introduce more complex cylindrical shapes. How to find the Surface Area of Cylinders To find the surface area of […]

Teaching Mathematics for a Growth Mindset

Inspiring students to enjoy maths and feel the success that comes with attempting a difficult challenge is why I teach.  The feeling of success is addictive.  The more students experience it the more they want it and the further out of their comfort zone they are willing to go to get more of it.  Teaching […]