Step 9 Objective
Square a linear expression, expand the product of two linear expressions of the form x ± n and simplify the corresponding quadratic expression.
- Examples of what pupils should
know and be able to do - Probing questions
- What if pupils find
this a barrier?
Probing questions
How do you go about simplifying this expression?
Give me some examples that you typically find easy.
Give me some examples that you typically find difficult.
What makes these difficult?
What do you have to look out for?