CIRCLES

OVERVIEW

Circles are explored in depth in this unit. From area of sectors to arc length and angle properties, circles and their properties are taught this half term. This is then extended to allow students to work out volume and surface area of shapes including cones, spheres and hemi-spheres. Higher tier students also learn how a circle can be represented on the cartesian plane. 

The previous lessons for this half term can be found here.

Lesson Resources

Working with Circles

Lesson 1 – The parts of a circle

Lesson 2 – Circumference of a circle problems

Lesson 3 – Arc Length of a sector

Lesson 4 – Area of a circle problems

Lesson 5 – Area of a sector

Lesson 6 – Volume of a cylinder

Lesson 7 – Volume of a cone using Pythagoras

Lesson 8 – Volume of a sphere

Lesson 9 – Surface area of a Cylinder

Lesson 10 – Surface area of a Sphere

Lesson 11 – Surface area of a Cone

Angles & Circles

Lesson – Angles around a point

Lesson – Angles on a straight line

Lesson – Angles in a triangle

Lesson – Angles in polygons

Lesson – Angles & parallel lines

Lesson 12 – Circle Theorems 1 (Higher)

Lesson 13 – Circle Theorems 2 (Higher)

Lesson 14 – Circle Theorems 3 (Higher)

Graphs & Circles

Lesson 15 – The equation of a circle (Higher) (Needs updating)

Lesson 16 – The equation of a tangent to a circle (Higher) (Needs updating)

Lesson 17 – Finding where a line intersects a circle (Higher)