Partitioning 1,000 in the context of measures | Maths

Starter quiz

What is the meaning of the prefix ‘kilo’?
- Ten
- One hundred
- One thousand ✓
- One million
Match the statement with the correct value.
- Number of ones in 1,000
  
  ⇔
  
  1,000 ✓
- Number of tens in 1,000
  
  ⇔
  
  100 ✓
- Number of hundreds in 1,000
  
  ⇔
  
  10 ✓
If the ten frame is worth 1,000 altogether, what is each counter worth? Each counter is worth ______
- '100' ✓
If the bar model is worth 1,000 altogether, what is each part worth? Each part is worth ______
- '500' ✓
If the bar model is worth 1,000 altogether, what is each part worth? Each part is worth ______
- '250' ✓
If the bar model is worth 1,000 altogether, what is each part worth? Each part is worth ______
- '200' ✓

Exit quiz

This metre stick is split into ten equal parts. How many millimetres is each part worth? ______ mm.
- '100' ✓
What is each interval worth on this scale?
- 1 g
- 100 g
- 200 g ✓
- 250 g
How much liquid is in this container?
- 1 ml
- 100 ml
- 200 ml
- 250 ml ✓
If 600 ml of liquid is poured from this container, how much is left? ______ ml.
- '400' ✓
There is 750 ml of liquid in this container. How much needs to be added to make one litre? ______ ml.
- '250' ✓
Jun buys a one kilogram bag of pasta and uses 250 g of it to cook. How much pasta is left in the bag? ______ g.
- '750' ✓

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Lesson Details

Key learning points

There are 1,000 g in a kg
There are 1,000 ml in a l
Milli means 1,000 times smaller
Kilo means 1,000 times larger

Common misconception

Pupils may miscalculate measures questions involving unit conversions if they are not secure with the key conversions of 1 m = 1,000 mm, 1 km = 1,000 m, 1 kg = 1,000 g and 1 l = 1,000 ml.

Spend time discussing the etymology of the words so pupils are not necessarily relying on memory and can figure out the equivalences if they cannot recall them. 'Milli' means 'thousandth' and 'kilo' means 'thousand': both relate to a thousand parts.

Keywords

Metre (m) and millilitre (ml) - A millimetre (mm) is a metric measure of distance used for small lengths. The basic unit of length (or distance) in the metric system is metre (m)
Kilometre (km) and metre (m) - A kilometre (km) is a metric measure of distance.
Kilogram (kg) and gram (g) - A kilogram is a measure of mass, equivalent to one thousand grams.
Litre (l) and millilitre (ml) - A litre is a measure of capacity, equivalent to one thousand millilitres.