Statistical Diagrams

Scheme of work: GCSE Foundation: Year 9: Term 1: Statistical Diagrams

Prerequisite Knowledge

• Solve comparison, sum and difference problems using information presented in a line graph
• complete, read and interpret information in tables, including timetables.

Success Criteria

• interpret and construct
• frequency tables
• bar charts
• pie charts
• pictograms
• pie charts
• for categorical data.
• interpret and construct
• vertical line charts for ungrouped discrete numerical data
• tables and line graphs for time series data
• and know their appropriate use.

Key Concepts

• Frequency tables must not have overlapping categories.
• Diagrams must not imply bias (e.g., equal width bar charts0
• Pictograms need to use suitable symbols to illustrate fractional amounts
• Students need to spend time interpreting the diagrams as well as creating them.

Common Misconceptions

• Bar charts are often drawn with unequal-width bars.
• Students often use nonlinear scales for bar and line graphs.
• The frequency is often incorrectly taken as the angle when drawing pie charts.
• Diagrams are often drawn without the correct labels and missing titl

Statistical Diagrams Resources

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