This worksheet teaches students to read line graphs that show change over time, find the biggest changes, and decide which conclusions the data really supports. The worksheet is split into warm-up questions, standard questions and then extension questions to test you.
The concepts it covers:
- A line graph shows how something changes over time. Time goes along the horizontal axis; the amount goes up the vertical axis.
- Each reading is plotted as a point, and the points are joined with straight lines.
- A line going up means an increase; going down means a decrease; flat means no change. A steeper line means a faster change.
- You can estimate a value between two readings by looking at where the line is between them.
What your child will practise:
- Reading values from a line graph, using the gridlines.
- Finding the highest and lowest values and when they happened.
- Finding the change between two times.
- Finding when the change was fastest.
- Deciding whether a conclusion is supported by the data.
Every section opens with a worked example, and the download includes a full answer key with step-by-step solutions and teaching notes on the mistakes students most commonly make.
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