introduction to measurements
DESCRIPTION
Numeracy and Access Maths. Some slides on measuring length and weight. Includes metric units of length. Also Zero error when using kitchen scalesTRANSCRIPT
![Page 1: Introduction to Measurements](https://reader031.vdocuments.us/reader031/viewer/2022012305/547eb1e6b4af9fe16f8b4938/html5/thumbnails/1.jpg)
Measurements
Metric and Imperial
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Four types of measurement…
• Length (can lead to area with a calculation)
• Time
• Capacity
• Weight
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Four types of measurement…
• Length (can lead to area with a calculation)
• Time
• Capacity
• Weight
![Page 5: Introduction to Measurements](https://reader031.vdocuments.us/reader031/viewer/2022012305/547eb1e6b4af9fe16f8b4938/html5/thumbnails/5.jpg)
Four types of measurement…
• Length (can lead to area with a calculation)
• Time
• Capacity (very similar to volume)
• Weight
![Page 6: Introduction to Measurements](https://reader031.vdocuments.us/reader031/viewer/2022012305/547eb1e6b4af9fe16f8b4938/html5/thumbnails/6.jpg)
Measuring length
How many centimetres long is the pink paper?
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Measuring length
How many inches long is the pink paper?
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Units of measurement
• When you put the paper by the side of the ruler, you are counting how many centimetres (and decimal parts of a centimetre) you need to equal the length of the paper
• The unit of length that you are using is the centimetre
• You could use millimetres (or inches) instead
![Page 9: Introduction to Measurements](https://reader031.vdocuments.us/reader031/viewer/2022012305/547eb1e6b4af9fe16f8b4938/html5/thumbnails/9.jpg)
Measuring weight
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Measuring weight
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Measuring weight
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Measuring weight
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Measuring weight
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Measuring weight
Supposed to be 500g bagIs it my scales or is the bag really 1lb?
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Converting (metric)
Camera lens over the 50/5 marks. Rulers lined up. How many mm in a cm?
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Metric length
• 10mm = 1 cm
• 100cm = 1m
• 1000 m = 1 Km
• milli means one thousandth
• centi means one hundredth
• Kilo means one thousand
![Page 17: Introduction to Measurements](https://reader031.vdocuments.us/reader031/viewer/2022012305/547eb1e6b4af9fe16f8b4938/html5/thumbnails/17.jpg)
Metric length
1. How many centimetres in 2 metres?
2. How many millimetres in 10 centimetres?
3. How many metres in 3 kilometres?
4. How many millimetres in 25 centimetres?
5. How many centimetres in 150mm?
6. How many centimetres in half a metre?
7. How many metres in half a kilometre?
![Page 18: Introduction to Measurements](https://reader031.vdocuments.us/reader031/viewer/2022012305/547eb1e6b4af9fe16f8b4938/html5/thumbnails/18.jpg)
Imperial length
• 12 inches in a foot
• 3 feet in a yard
• 220 yards in a furlong
• 8 furlongs in a mile!
These funny multiples were practical when you had to halve things, and divide them up by halving and quartering.
A Saxon field was 220 yards by 22 yards wide, one Acre.
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Your turn
• Work in four groups
• Use the yardsticks, the steel tape measures and the 30 cm rulers to complete the length activities on the worksheet
• Take it in turns to do the weight activity using the scales
![Page 20: Introduction to Measurements](https://reader031.vdocuments.us/reader031/viewer/2022012305/547eb1e6b4af9fe16f8b4938/html5/thumbnails/20.jpg)
Safety
Don’t have your fingers near the edge of the tape when you are winding it back in!