Maths · Reading values off a line graph
Line Reader
Tap the step where the line rises the most. Then say by how many books it rose across that step.
Free to use and free to share. There is no sign-up, no score, and nothing a child does here is recorded or sent anywhere. What you may do with it, in full.
Loading the interactive exercise. Nothing you do here is saved or scored.
Why this works
The steepest rise is from Tuesday to Wednesday: the line goes from 15 to 30, a rise of 15. Every other step on this graph moves less than that, which is what makes this one the answer rather than merely a big move. Counting the gridlines between the two ends gives the same number as subtracting, and the lines here go up in 5s. The steepest step is the one that climbs the most lines, not the one that ends highest.
Helping a child through Line Reader
It runs in 2 steps
- 1. Find it. Tap the steepest step of the line.
- 2. Read it. Now read the scale and choose how many books that is.
Hints, least revealing first
- Find the bar, row or slice the question names before you read anything. Getting the label right matters as much as the reading.
- The scale does not always count up in single steps. Work out what a single line is worth before you read anything off it.
- Keep your finger level as you slide from the board across to the scale. Drifting up or down by a line is the commonest slip there is.
When they finish it: “Read straight off the scale.”
2 11+ skills this exercise practises
Each of these has its own page, with a worked example on it.
- Compare line-graph changeCompare one change or gap between plotted values.
- Read a line-graph valueRead one plotted value at a named position.
You can reuse this. Here is exactly how far that goes
Tutors, teachers and editors keep asking, so this is the answer in writing rather than by email. You do not need to ask permission, and you do not need to tell us.
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Embed this exercise
Paste this into your own page and the exercise runs there, playable, for your readers or your students. It is 900 pixels tall by default and as wide as the column you put it in; change the height if your layout wants a different one.
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One exercise is a start, not a plan
A free diagnostic across all four subjects shows which maths skills to practise next, and in what order.