A directory of useful objects found on the web for teaching Maths.

*Investigate the relationship between features of circles such as circumference, area, radius and diameter. Use formulas to solve problems involving circumference and area (ACMMG197)
* investigating the circumference and area of circles with materials or by measuring, to establish an understanding of formulas
* investigating the area of circles using a square grid or by rearranging a circle divided into sectors*