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Year 3 - Maths

Using graphs to represent lengths and heights

Measuring length and recording in tables

Unit Summary

In this unit pupils will continue to measure using appropriate tools and units progressing to using a wider range of measures, including comparing and using mixed units.

Lesson Summary

You will learn to represent lengths and heights on a graph and use them to solve problems.

Key Notes

  • Information about length and height from a table can be represented in a bar graph.
  • Information represented in a bar graph can be used to solve problems.

Vocabulary To Learn

  • graph: A graph is a visual way of showing information. A Bar Graph uses bars of different lengths or heights to represent information.
  • axis: An axis on a graph is a fixed measuring line that runs horizontally (left to right) and/or vertically from zero:

Common Mistakes To Avoid

  • Mistakes may be made on comparison problems. E.g. how much further does one child jump than another?

3 Quick Questions (With Answers)

1. Solve this in steps: explain the method from this lesson and why each step matters.

Information about length and height from a table can be represented in a bar graph. Information represented in a bar graph can be used to solve problems.

2. Use this key word in a maths sentence and explain it clearly. 'graph'

A graph is a visual way of showing information. A Bar Graph uses bars of different lengths or heights to represent information. Use this word when showing your method, then check your final answer is reasonable.

3. Spot and fix this common maths mistake.

Mistake: Mistakes may be made on comparison problems. E.g. how much further does one child jump than another? Correction: When we compare, we are finding the difference. To find the difference, we need to subtract the smaller value from the larger value.

More Lessons In This Unit

Browse all guides in the Year 3 Maths guide library.