Step 8 Objective
Know and use the index laws for multiplication and division of positive integer powers.
- Examples of what pupils should
know and be able to do - Probing questions
- What if pupils find
this a barrier?
Probing questions
What the answer to 5 × 5 = ?
Convince me that 3 ÷ 3 = 3.
What the answer to 5 + 5? Why don't the same laws apply?
If 2 × 3 = 162, what is the value of n?
If 4 × 4 = 4 and , what are the values of m and n?