Starter quiz
- Match the unit of measure to the correct abbreviation.
- centimetre⇔cm ✓
- metre⇔m ✓
- pence⇔p ✓
- millimetre⇔mm ✓
- Which of these numbers are multiples of 10?
- 10.5
- 60 ✓
- 59
- 50 ✓
- 25
-
- Which of these numbers are multiples of 100?
- 100 ✓
- 105
- 250
- 500 ✓
- 590
-
- How many millimetres are there in a centimetre?
- '10' ✓
- How many pennies are there in £1.00?
- '100' ✓
- How many centimetres are there in one metre?
- '100' ✓
Exit quiz
Look at the image. What is this length written as a decimal?- 0.6 cm
- 1.0 cm
- 1.6 cm ✓
- 0.16 cm
-
- Convert 1.6 cm into mm. ______ mm
- '16' ✓
- Convert £5.60 into pence. ______ p
- '560' ✓
- Convert 7.25 m into cm. ______ cm
- '725' ✓
- Convert 8.75 m into cm. ______ cm
- '875' ✓
- Order these distances from shortest to longest:
- 1⇔2 m
- 2⇔2.4 m
- 3⇔250 cm
Worksheet
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Presentation
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Video
Lesson Details
Key learning points
- If 1 cm = 10 mm, then 3 cm = 3 x 10 mm = 30 mm
- If 1 m = 100 cm, then 3 m = 3 x 100 cm = 300 cm
- If £1.00 = 100 p, then £3.00 = 3 x 100 p = 300 p
Common misconception
Pupils might see a number like 9.2 m and incorrectly partition it into 9 m and 2 cm.
It is essential that pupils are exposed to lots of examples of visual models, such as parts of circles and number lines, so that they have a secure understanding of why, in this case, the 0.2 m is equal to 20 cm.
Keywords
Equivalent - If two or more things have the same value, they are equivalent.
Convert - Change a value or expression from one form to another.
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