A directory of useful objects found on the web for teaching Maths.
Browsing by The Australian Curriculum
Establish properties of quadrilaterals using congruent triangles and angle properties, and solve related numerical problems using reasoning (ACMMG202)
* establishing the properties of squares, rectangles, parallelograms, rhombuses, trapeziums and kites
* identifying properties related to side lengths, parallelism, angles, diagonals and symmetry