Home → Curriculum Hub → Maths Lessons → Schemes of Work → Key Stage 3 → Representing and Interpreting Statistical Diagrams
This Key Stage 3 Representing and Interpreting Statistical Diagrams scheme of work is designed for Year 8 work on bar charts for continuous data, line graphs, pie charts and scatter graphs, including interpretation, comparison and real-life contexts such as population pyramids and correlation.
Use this page to sequence the lessons below, keep statistical vocabulary precise, and connect diagram construction to inference about distributions, trends over time and relationships between variables.
Last updated: May 2026
For more schemes and topic routes across KS3, GCSE and A-Level, browse the Mr Mathematics Curriculum Hub.
Read the prerequisite and key-concept cards first so mean, pie charts and earlier graphical work are secure. Teach the lessons in the order listed unless your timetable requires otherwise—keep continuous bar charts and line graphs before pie charts and scatter graphs so students build from univariate display to comparison and bivariate correlation.
Presentations, worksheets, question generators and video tutorials for the lessons in this unit are available to members. Explore Mr Mathematics membership if you need full access to the library and schemes of work.
If you are comparing options for a department, the membership page sets out exactly what is included so you can align this unit with your wider KS3 statistics and data-handling plan.
Students should be secure with the following before this unit.
Ideas to keep explicit while students represent and interpret statistical diagrams.
Subject content (Statistics)
How this unit supports fluency, reasoning and problem solving in Key Stage 3.
Typical slips to address during teaching and marking.
Use it to sequence teaching, align vocabulary and spot likely errors before they become habits. Then use the lessons below as the delivery route for the unit.
They need confident work with means, earlier pie charts and line graphs, and describing single-variable distributions so new work focuses on continuous data, comparison and bivariate scatter graphs rather than basic table reading.
Each lesson listed below has its own page with downloadable resources and, where available, online tasks. Access depends on your membership level.
Yes if your timetable requires it—keep univariate charts (continuous bar charts and line graphs) before pie-chart comparison and place scatter graphs and correlation after students can interpret plotted data confidently.
You can find additional revision lessons, exam-style questions and topic-based practice on the GCSE Maths Revision Hub. This is useful for consolidating learning after teaching the unit or for Year 11 exam preparation.
Students learn how to plot and use bar charts to interpret data.
Population pyramids are introduced later in the lesson to add a real-life context.
Students learn how to draw and interpret real-life line graphs.
As learning progresses, students learn how to use line graphs to interpret trends over time and predict future values.
Students learn how to construct a pie chart from a frequency table.
As learning progresses, they compare data sets by working out the frequencies.
Students learn how to plot and interpret scatter graphs.
Scatter graphs are used to check for correlation in sets of real-life data, including population statistics in the United Kingdom.
Students gain additional practice drawing pie charts from a frequency table.
The problem-solving activity challenges students to draw a pie chart by sharing the sample to a given ratio.
Students revise how to draw a pie chart using fractions of an amount.
Later, as learning progresses, they interpret pie charts with links to bar charts and subtract with fractions.
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