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

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

This is called the grid method:

This is the column method: This is the compacted method: 23 x 45 = 23 x 45 15 100 120 800 1035 23 x 45 115 920 1035 What mental work has been going on?

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

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

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!!

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

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, 1000 understanding the place value of digits in numbers and how each digit moves 10 x larger or smaller depending on multiplying OR dividing

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

New National Curriculum p.142-143 https://www.khanacademy.org/math/arithmetic/multiplication-division/long_division/v/dividing-by-a-two-digit-number