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Year 6 - Maths

Interpret the scales used in graphs, including pie charts, to solve problems

Statistics

Unit Summary

In this unit pupils will interpret and construct pie charts and line graphs. They will read scales linked to fractions angles percentages and understanding proportional relationships.

Lesson Summary

You will learn to solve problems using line graphs and pie charts.

Key Notes

  • A pie chart represents parts of a whole.
  • A line graph represents the relationship between two variables.
  • Place value helps you to interpret partially marked scales and axes.

Vocabulary To Learn

  • Line graph: A line graph is a graph where the points are connected by lines.
  • Pie chart: A pie chart is a circular graph where sectors represent different groups in proportion to each other.
  • Sector: A sector is a part, or 'pie-slice' part, of a pie chart.

Common Mistakes To Avoid

  • Pupils may make errors interpreting information from pie charts, especially with making links between angles, fractions, percentages and working out an answer to a question.

3 Quick Questions (With Answers)

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

A pie chart represents parts of a whole. A line graph represents the relationship between two variables.

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

A line graph is a graph where the points are connected by lines. Use this word when showing your method, then check your final answer is reasonable.

3. Spot and fix this common maths mistake.

Mistake: Pupils may make errors interpreting information from pie charts, especially with making links between angles, fractions, percentages and working out an answer to a question. Correction: Display 'benchmarks' in the classroom, showing a pie chart with labelled sectors (e.g. showing that 10% is equal to one tenth or 36° of the chart; 25% is equal to one quarter or 90°).

More Lessons In This Unit

Browse all guides in the Year 6 Maths guide library.