Inscribing a square into a circle Whiteboard exercise Play

Intersection points (1) Whiteboard presentation Play

Intersection points (1) Class activity Play

Intersection points (2) Whiteboard presentation Play

Intersection points (2) Class activity Play

Intersection points of two circles Student activity Play

Intersection points of two circles Whiteboard exercise Play

Justification of a geometric construction Student activity Play

Justification of a geometric construction Whiteboard exercise Play

Lattice points on a disc Simulation Play

Lattice points on a disc Student activity Play

Lena's bike Whiteboard exercise Play

Lena's birthday cake Whiteboard exercise Play

Line that is tangent to both circles Animation Play

Lines and a circle Student activity Play

Lines and a circle Whiteboard exercise Play

Locus Student activity Play

Locus of all the points equidistant from two points Simulation Play

Making angles that are multiples of 60° Student activity Play

Measuring the circle Whiteboard presentation Play

Measuring the circle Class activity Play

Miscellaneous exercises Student activity Play

Miscellaneous exercises Student activity Play

Miscellaneous problems Student activity Play

More complex examples in factorising by completing the square Student activity Play