1. KS2 Mathematics How to help with methods of teaching mental maths
at Ironville and Codnor Park Primary

2. What are your feelings about maths?
How would you do this:
23 x 45 =

3. This is called the grid method:

4. This is the column method:
This is the compacted method:
23 x 45 = 23 x 23
x 45
115
920
1035
What mental work has been going on?

5. Mental maths required before these written methods can be taught effectively
Times tables to 12 x 12 by the end of Year 4
Addition facts
Multiplying by 10, 100, 1000

6. Let’s Go High, Let’s Go Low
Activity
Let’s Go High, Let’s Go Low

7. Scaffold the learning: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84
Let’s go high, let’s go low, away we go….
Forwards, then backwards!!

8. Scaffold the learning: 7 ? 21 ? 35 42 49 ? 63 ? 77 ?
7 ? 21 ?
49 ? 63 ? 77 ?
Forwards, then backwards!!
Now remove the numbers!!!

9. What other ways can you practise mental maths skills?
Times tables to 12 x 12 – regular ongoing practice, relating these to division facts: throwing a ball walking up and down steps skipping rope throwing two/three dice online maths games
Addition facts maths skills packs from school games – monopoly, frustration, cards
Multiplying by 10, 100, understanding the place value of digits in numbers and how each digit moves 10 x larger or smaller depending on multiplying OR dividing

10. Online games
Children love games to engage their learning. Try some of these site links.

11. New National Curriculum p.142-143