Inscribed circles Whiteboard exercise Play

Intersection points of two circles Student activity Play

Intersection points of two circles Whiteboard exercise Play

Line that is tangent to both circles Animation Play

Mutual position and number of common points of two circles Whiteboard exercise Play

Mutual position and number of common points of two circles Student activity Play

Mutual position of two circles Whiteboard presentation Play

Mutual position of two circles Whiteboard exercise Play

Mutual position of two circles Class activity Play

Mutual position of two circles Student activity Play

Mutual position of two circles and the distance between their centres Whiteboard exercise Play

Mutual position of two circles in the coordinate system Simulation Play

Mutual position of two circles in the coordinate system Student activity Play

Number of intersection points of two circles Whiteboard exercise Play

Other models – activity Student activity Play

Possible positions of two circles Animation Play

Radii of three circles Whiteboard exercise Play

Radius of inscribed and circumscribed circles Animation Play

Solving problems involving circles Class activity Play

Solving problems involving circles Whiteboard presentation Play

The distance between the centres of circles Student activity Play

The hidden assumptions Animation Play

The hidden patterns Animation Play

The hidden patterns Animation Play

The hidden rule Student activity Play