MATHBONE JOURNAL

Before interpreting a graph, read the axes

Check units, range and scale before drawing a conclusion.

Illustrative image: Teenage learners interpreting a chart on a laptop
Illustrative learning scene

Secondary

Read labels and units

Ask what the horizontal and vertical axes represent, such as days and books read. Missing labels or units limit interpretation.

Check the scale intervals

Check whether intervals are equal and whether the axis starts at zero. Bar height alone can give a misleading impression of differences.

This example uses a zero baseline and one consistent scale. Values for A to D are 12, 16, 8 and 20.
Connect the picture with the reasoning

This example uses a zero baseline and one consistent scale. Values for A to D are 12, 16, 8 and 20.

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Separate observation from prediction

State what the data shows, such as the highest observed value, before discussing assumptions needed to predict the next day.

Keep exploring together

Choose activities that match the learner’s knowledge and readiness, and discuss what you notice. Explore the curriculum or parent guide below.

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