### Teaching and Group Activities for Understanding

**Day 1 Teaching**

Show a 1kg weight. Write some weights in g and kg on cards. Put up a washing line, and order the weights along it. Repeat for capacities in ml/litres.**Group Activities**

-- Play a game converting from grams to kilograms and vice versa (1 or 3 decimal places).

-- Convert from litres to millilitres and vice versa, including amounts with 2 decimal places.

**Day 2 Teaching**

Ask children to write some km distances as metres. Discuss km and miles. Say that 5 miles is about 8km. Find 10, 15, 50 miles in km. Show how to draw a line graph to show this relationship.**Group Activities**

-- Plot a line graph with given axes; use this to find kilometre to mile equivalents and vice versa, including at intermediate points on the graph.

**Day 3 Teaching**

Discuss Imperial measures. Discuss some approximate conversions between pounds, ounces, kg, cm, inches etc.**Group Activities**

-- Make connections between regularly-used imperial units and familiar objects and contexts. Relate to well-known metric equivalents, understanding that some of these are approximate.

**Day 4 Teaching**

Show a table of conversions from grams to ounces. Convert some weights from ounces to pounds and ounces. Draw two axes and label them kilograms and ounces. Then draw the conversion graph and discuss.

**Group Activities**

Use the in-depth problem-solving investigation ‘Weights in a line’ as today’s group activity.

Or, use these activities:

-- Draw a line graph to convert litres to pints and vice versa.

-- Draw a line graph to convert centimetres to inches.