Calculate the difference when information is presented in a bar chart
I can calculate the difference when information is presented in a bar chart.
Calculate the difference when information is presented in a bar chart
I can calculate the difference when information is presented in a bar chart.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- A bar chart is a graph that uses bars to represent information.
- Bar charts can have different scales.
- The difference is one of the parts that make the whole. Whole - part = part (difference)
- You can calculate the difference by counting on from the known part to the whole.
Keywords
Bar chart - A graph that uses bars of different heights to represent information.
Difference - The result of subtracting one number from another. Way in which two or more things we are comparing are not the same.
Counting on - A mental strategy used to add numbers.
Subtraction - To partition one part from another (the subtrahend from the difference), or to decrease an amount by taking an amount away.
Common misconception
Children may initially struggle to read and interpret the data on the bar chart / graph.
A ruler can be used to help children line up the top of the bar with the scale. Model this as a strategy to support accurate reading.
To help you plan your year 2 maths lesson on: Calculate the difference when information is presented in a bar chart, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 2 maths lesson on: Calculate the difference when information is presented in a bar chart, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
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The assessment exit quiz will test your pupils' understanding of the key learning points.
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Explore more key stage 1 maths lessons from the Calculating within 20 unit, dive into the full secondary maths curriculum, or learn more about lesson planning.
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Lesson video
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Starter quiz
6 Questions
Exit quiz
6 Questions
