Become familiar with scales with different intervals when measuring in grams

I can become familiar with scales with different intervals when measuring in grams.

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Year 3

Become familiar with scales with different intervals when measuring in grams

I can become familiar with scales with different intervals when measuring in grams.

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Share activities with pupils

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Lesson details

Key learning points

The mass of objects can be measured in grams.
Different scales can be marked with different intervals.
The mass of objects can be compared using scales.

Keywords

Mass - Mass is a measure of how much matter something contains. It is measured by how much something weighs. Mass can be measured in grams.
Gram - A gram is a metric measure of mass (which we feel as weight). A paper clip weighs about 1 gram. The abbreviation is g.
Interval - Intervals are the spaces between given numbers. They include all given numbers between the numbers marked at the start and end.

Common misconception

When comparing masses - if the scales have different intervals or the zero is in different places.

Remind children that the scale is a number line and we always read number lines from zero; the further the arrow travels, the greater mass.

This should be a practical lesson where possible. Expose the children to a variety of scales with different intervals. No need to measure in this lesson; just get children used to putting objects on the scales and noting the movement of the arrow.

Teacher tip

Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).