### Planning and Activities

**Day 1**

Revise doubling first for 1-digit numbers and then teens numbers using base-10 equipment (Dienes or Numicon).

**Further Teaching with Y2**

Physically model finding 1/2 and 1/4 of a number of objects.

**Group Activities: T with Y1**

Y1 -- Double handfuls of cubes. Or, play a double numbers card game using numbers to 14.

Y2 -- Explore finding 1/2s and 1/4s of various numbers; solve fraction problems.

**Day 2**

Briskly revisit finding 1/2 and 1/4 of 12 objects. Introduce sharing between three to find 1/3. Model using concrete resources, e.g. decorations or candles on a cake.

**Further Teaching with Y1**

Halve even numbers, using bar models and base-10 equipment to represent the concept.

**Group Activities: T with Y2**

*Use the in-depth problem-solving investigation ‘Happy Halving’ from NRICH as today’s group activity.*

Or, use these activities:

Y1 -- Play halves pairs with numbers up to 24 (or 34).

Y2 -- Find Smartie™ fractions through sharing. Sort numbers according to sharing results.

**Day 3**

Explore halving small odd numbers, e.g. 7 and 9, modelled with real objects (biscuits, sweets, etc.). Fold a paper strip of squares to provide a different representation. Record halving number sentences, e.g. half of 9 is 4½.

**Further Teaching with Y2**

Count in halves and quarters, modelled using paper fraction shapes and represented on a number line.

**Group Activities: T with Y1**

Y1 -- Halve biscuits to explore finding half of odd numbers.

Y2 -- Write, count and identify hidden numbers of 1/2s and 1/4s on a number line. Or, play a counting in 1/2s and 1/4s card game.

**Day 4**

Quickly revisit folding a paper circle to find halves and quarters. Then model folding a shape that can be folded in half one way, but not the other, and one that cannot be halved at all.

F**urther Teaching with Y2**

Find fractions of numbers (including ¾) using physical objects (bananas) and relating to number facts.

**Group Activities: T with Y2**

Y1 -- Investigate halving and quartering shapes by folding.

Y2 -- Find and record 1/2, 1/3, 1/4 and 3/4 of given numbers. Or, calculate fraction amounts playing a ‘Find the fraction’ card game.

**Day 5**

Share candles between different fractional amounts of cake to find half and quarters.

**Further Teaching with Y2**

Finding 1/2, 1/3 and 1/4 of ingredients to adjust recipes.

**Group Activities: T with Y1**

Y1 -- Divide a tower of cubes equally to find 1/2 of that number. Or, find 1/4 of numbers by breaking towers of cubes into half and half again.

Y2 -- Change recipe quantities to make 1/2, 1/3 or 1/4 of the given recipe.