Step 7 Objective
Classify quadrilaterals by their geometric properties.
- Examples of what pupils should
know and be able to do - Probing questions
- What if pupils find
this a barrier?
Probing questions
What properties do you need to know about a quadrilateral to be sure it is a kite; a parallelogram; a rhombus; an isosceles trapezium?
How could you convince me that a rhombus is a parallelogram but a parallelogram is not necessarily a rhombus?
Why can't a trapezium have three acute angles?
Which quadrilateral with one line of symmetry has three acute angles?