### Planning and Activities

**Day 1**

Divide the class into 2 groups and rehearse ‘Whisper counting’ (alternate numbers in whispered, then normal voices; louder voices emphasise the 2s numbers). Count again, recording sequence of 2s: 2, 4, 6, … 20. Count pairs of shoes in 2s to find how many shoes in total.

**Further Teaching with Y2**

Highlight multiples of 2 on Number grid ITP. Discuss patterns and look at different 1s digits in odd and even numbers.

**Group Activities: T with Y2**

Y1 -- Count in 2s, using bodies and images, or objects in pots.

Y2 -- Sort numbers according to properties, or play heads and tails odds and evens.

**Day 2**

Use Number grid ITP to explore patterns of multiples of 2, 5 and 10. Describe patterns in counting sequences, e.g. 7, 12, 17, 22 ... and 8, 13, 18 and 23 …

**Further Teaching with Y1**

Exploring odd and even numbers with pairs of socks. Create a generalisation.

**Group Activities: T with Y2**

*Use the in-depth problem-solving investigation ‘Multiple Madness’ as today’s group activity.*

Or, use these activities:

Y1 -- Sort numbers into odds and evens by looking at the 1s digit, or by sorting pairs of socks.

Y2 -- Complete and describe number patterns that involve 2s, 5s and 10s. Or, investigate true, sometimes true or never true statements about patterns.

**Day 3**

Revise number doubles using fingers.

**Further Teaching with Y2**

Using ‘Whisper counting’ for 3s. Describe the pattern of multiples of 3 on the Number grid ITP. Use it to predict other multiples of 3.

**Group Activities: T with Y1**

Y1 -- Play a game to improve recall of doubles facts.

Y2 -- Identify multiples of 3; some children may use a 1–100 grid.

**Day 4**

Double numbers to 12 using physical objects, e.g. sweets or cubes. Note that all doubles (of whole numbers) are even numbers.

**Further Teaching with Y2**

Count in 2s, 3s, 5s and 10s on a beaded line, recording as multiplication sentences.

**Group Activities: T with Y1**

Y1 -- Calculate doubles of numbers up to 20.

Y2 -- Generate and solve *times 2*, *times 3*, *times 5* and *times 10* multiplication sentences. Or, solve and create x2, x3, x5 and x10 word problems.

**Day 5**

Halve even numbers up to 24 using physical objects.

Further teaching with Y2

Identify numbers on a 1–100 grid using a variety of properties and mathematical language.

**Group Activities: T with Y1**

Y1 -- Count even numbers of cubes; find and record half.

Y2 -- Decipher ‘mystery’ numbers from ‘number property’ clues.