Mobile telephony Slideshow Play

Parts of the circle Student activity Play

Parts of the circle Whiteboard exercise Play

'Rounded' Pythagorean theorem Animation Play

Sectors and segments Student activity Play

Shapes bounded by arcs Whiteboard exercise Play

Shapes bounded by arcs Student activity Play

Shapes bounded by arcs and segments Whiteboard exercise Play

Shapes bounded by arcs and segments Student activity Play

The area of a sector Animation Play

The area of a triangle Animation Play

The line and the circle Student activity Play

The lunes of Hippocrates Student activity Play

The moon-shaped figures Animation Play

The running truck Whiteboard exercise Play

The volume of a sphere Student activity Play

What is an area? Student activity Play

What is an area? Animation Play