# Maths Year 3/4 Autumn Multiplication and Division

Each unit has everything you need to teach a set of related skills and concepts.

## Rehearsing & understanding times tables(suggested as 3 days)

### Planning and Activities

Day 1
Quickly practise revising multiples of 5. Look at a 5 by 7 array; establish four connected multiplication and division facts. Repeat for 12 × 2, modelling groups on a bead bar.
Further teaching with Y4
Investigate multiplication and division facts using an interactive ‘function machine’.
Group activities: T with Y3
Y3 -- Identify the four number facts that an array describes. Play a tables facts game.
Y4 -- Create and solve function machine problems for the 2, 3, 4, 5 and 10 times tables.

Day 2
Model and derive 3 times table facts and corresponding divisions using 12 towers of 3 cubes.
Further teaching with Y4
Generate 6 times table facts by doubling the 3 times table.
Group activities: T with Y4
Y3 -- Find multiples of 3 by hopping on a beaded line. Play a 3 times table game.
Y4 -- Play a 3 times table and 6 times table game.

Day 3
Model 4 times table facts and the corresponding divisions using a 12-section counting stick.
Further teaching with Y4
Generate 8 times table facts by doubling the 4 times table.
Group activities: T with Y4
Use the in-depth problem-solving investigation for this unit ‘Mystery age’ as today’s group activity.
Or, use these activities:
Y3 -- Find multiples of 4 by hopping on a beaded line. Practise recall of the 4 times table.
Y4 -- Recall 4 times tables facts; double to find 8s. Play a 4 and 8 times table game.

### You Will Need

• ‘5 by 7 array’ and 'Arrays' (see resources)
• ITP: Function machine
• Sets of number cards (2, 5, 10 and 3–12)
• ‘2, 5 and 10 times tables’ (see resources)
• Coloured pencils and sticky notes
• ‘Mystery function machine’ (see resources)
• Cubes, number cards 1–12 and blank cards
• ‘0–40 beaded lines’ (see resources)
• Set of 1–12 cards and a coin per pair
• Set of 1–12 cards and set of 2–6 cards
• ‘Counting stick’ (see resources)
• ‘0–50 beaded lines’ (see resources)
• Multiples of 4 cards and 2-minute timer

### Short Mental Workouts

Day 1
Division facts: 5 times table

Day 2
Division facts: 2, 5 and 10 times tables

Day 3
Division facts: 3 and 6 times tables

### Worksheets

Day 1
Y3: Recognise multiples of 2, 5 and 10.
Y4: Solve function machine problems using times tables facts.

Day 2
Y3: 3 times table practice.
Y4: 3 and 6 times tables practice.

Day 3
Y3: 4 times table practice.
Y4: 4 and 8 times tables practice.

### Mastery: Reasoning and Problem-Solving

Y3

• Write 4 number sentences to relate these 3 numbers: 5, 7 and 35.
• We know 8 × 5 = 40. So, what is 40 ÷ 5?
We know 24 ÷ 2 = 12. So, what is 12 × 2?
• Write a division with an answer of 5. Now write a different division using those same three numbers.
• Explain why you might prefer to do 5 × 9 as 9 lots of 5.
• Write the missing numbers:
☐ × 4 = 28
3 × ☐ = 21
36 ÷ ☐ = 4

Y4

• Write 48 in the middle of a space and circle it. Draw 10 spider legs out from it. Write 10 multiplication or division sentences using this number, e.g. 48 ÷ 6 = 8.
• What times table is this? Explain what number ‘a’ stands for.
6 × a = 20 + a
8 × a = 30 + half of a
• Always true, sometimes true or never true?
In one times table, there are only 2 possible ones digits in the answers.
3 times a number is an odd number.
Answers in the 4 times table are even.
Answers in the 3 times table are also in the 6 times table.

In-depth Investigation: Mystery Age
Y3: Children use their knowledge of the 3, 4, and 5 times tables to work out mystery numbers.
Y4: Children use their knowledge of the 5, 6, and 8 times tables to work out mystery numbers.

### Extra Support

Y3
Hops, Skips and Jumps

Counting in 2s from 0 to 20 and counting in 5s from 0 to 50

and/ or

Monster Multiplications
Counting in 3s - 'Clever Counting' and multiplication

Y4
Clever Counting

3 and 4 times tables. Linking multiplication and division