### Planning and Activities

**Day 1**

Hang a 0 card at one end of a washing line and 1000g with 1kg pegged beneath it at the other. Children peg different numbers of grams and kg (up to 2dp) along the line, then convert to kg/grams. Repeat for litres and ml.

**Further Teaching with Y6**

Write 0.458kg, 500g, 0.4kg, 250g, 0.678kg, 785g on cards and repeat as above.

**Group Activities: T with Y6**

Y5 -- Play a game converting between grams and kilograms (1 decimal place).

Fill in missing amounts on a 0–1kg line. Estimate to order containers by capacity; measure to check. Convert between litres and millilitres.

Y6 -- Play a game converting between grams and kilograms (1 or 3 decimal places).

**Day 2**

Write a variety of distances on the board and use these to convert between metres and kilometres (place value multiplication or division by 1000).

Introduce conversion between miles and kilometres. Together, draw a line graph for the conversion; read intermediate points of interest.

**Group Activities: T with Y5**

Y5/Y6 -- Construct a line graph to convert between miles and km.

**Day 3**

List imperial units other than miles, e.g. pints, pounds, stones, ounces, feet, inches, yards. Do children know the contexts where they are used? Using different familiar contexts (packet of crisps, baby’s weight, milk, etc.) explore equivalent metric units.

**Group Activities: T with either or both**

*Use the in-depth problem-solving investigation ‘Inches and Barleycorns’ from NRICH as today’s group activity.*

Or, use these activities:

Y5/Y6 -- Use known facts to convert between centimetres and inches, kilograms and stones/pounds, litres and pints.

Y5/Y6 -- Measure height in cm, convert to inches, draw line graph to check. Find out how many grams are in a pound.