New
New
Securing understanding of ordering and comparing numbers
I can confidently order and compare a variety of numbers and measures.
Lesson 10 of 11
New
New
- Year 7
Securing understanding of ordering and comparing numbers
I can confidently order and compare a variety of numbers and measures.
Lesson details
Key learning points
- In order to compare measures, conversion may be necessary.
- Measures can be converted using place value.
- Values can be ordered using inequality symbols.
Keywords
Inequality - An inequality is used to show that one number or measurement is not equal to another.
Common misconception
The number with the largest value is the greatest measurement.
Converting to the same unit can be helpful before comparing the place value of the digits. e.g. 0.4 m is bigger than 40 mm.
Be careful when talking about metric units. For example, cm being 100th of a metre, that pupils don't think that to covert cm to m you divide by 100.
Teacher tip
Licence
This content is © Oak National Academy Limited (2026), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.The metric units of capacity are millilitre, centilitre and __________.
The metric units of capacity are millilitre, centilitre and __________.
Q2.Match together each unit with its type of measurement.
Match together each unit with its type of measurement.
Q3.The symbol < means:
The symbol < means:
greater than
less than or equal to
greater than or equal to
equal to
Q4.What is 1.3 metres in centimetres?
What is 1.3 metres in centimetres?
13 cm
0.013 cm
1300 cm
Q5.Select the correct statements.
Select the correct statements.
0.21 ml < 0.12 ml
0.12 ml > 0.21 ml
0.12 ml = 0.21 ml
Q6.Starting with the smallest measurement, sort these measurements into ascending order.
Starting with the smallest measurement, sort these measurements into ascending order.
Assessment exit quiz
6 Questions
Q1.Match each of these symbols with its definition.
Match each of these symbols with its definition.
Q2.Select the correct symbol to replace the "?" in this statement: 1.45 m ? 14.5 cm
Select the correct symbol to replace the "?" in this statement: 1.45 m ? 14.5 cm
<
=
Q3.Select all the correct statements.
Select all the correct statements.
420 ml < 42 cl
42 ml > 42 cl
Q4.Select all the lists which can be ordered.
Select all the lists which can be ordered.
23 mm, 23 mg, 23 m, 23 cm
7.8 kg, 7.8 ml, 78 mg 78 mm
Q5.Starting with the smallest, sort these distances into ascending order.
Starting with the smallest, sort these distances into ascending order.
Q6.Starting with the smallest, sort these masses into ascending order.
Starting with the smallest, sort these masses into ascending order.
