### Planning and Activities

**Day 1 Teaching**

Use decimetre strips or rods as uniform unit to measure a child’s height. Show Y2 that each rod is a standard unit (dm).

**Further Teaching with Y1**

Model using cubes as a uniform unit. Use cubes to measure the height of a chair. Record height of different objects in cubes.

**Group Activities**

Y1 -- Estimate and measure objects using cubes or rulers.

Y2 -- Measure heights/ objects using decimetre strips or rods.

**Day 2 Teaching**

Estimate and measure length using a uniform unit (beads). Use a 20-bead string to measure a child’s hand span. Compare and order different hand spans.

**Further Teaching with Y2**

Show that a decimetre is 10cm. Measure your foot using cm.

**Group Activities**

Y1 -- Measure lengths using a bead string.

Y2 -- Measure hand spans and shoe sizes in centimetres, using decimetre strips.

**Day 3 Teaching**

Show a metre stick. Use metre sticks to estimate and measure the length or width of the hall.**Further Teaching with Y2**

Demonstrate how to measure objects with a ruler. Use 30cm rulers to measure in centimetres and metres. Show that a ruler is 3dm

**Group Activities**

Use the in-depth problem-solving investigation for this unit – Make a stick – as today’s group activity.

Or use the activity below.

Y1 -- Suggest and find objects more and less than 1m.

Use the in-depth problem-solving investigation for this unit – Fanned Fingers – as today’s group activity.

Or use the activity below.

Y2 -- Estimate then measure objects and distances in centimetres.