Reading and interpreting line graphs showing change over time, reading values between plotted points.
Where your child meets this in real life: Understanding temperature changes, tracking progress over time, or financial trends
SEAGReady breaks read line graphs into 3 steps, taught in order so each skill builds on the last.
Read the value at plotted points on a line graph by finding coordinates
Estimate or read values at positions between plotted data points (interpolation)
Describe and compare rates of change, identifying where change is fastest or slowest
Three free sample questions from our read line graphs course. Every question comes with a full explanation, and hints that guide without giving the answer away.
Anna recorded the temperature every hour from 9am to 12pm. What was the temperature at 10am?
Sean tracked the distance he had cycled during a bike ride. Approximately how far had he cycled after 25 minutes?
Jacob measured the water level in a rain barrel from 1pm to 5pm. Between which two times did the water level fall fastest?
This is the exact interactive worked example your child sees in SEAGReady. Step through it and watch the method build up.
Holly recorded the temperature in her garden every hour during the school day. She made a line graph of her results.
What was the temperature at 11am?
Find 11am on the horizontal axis
Step 1 of 4
Holly recorded the temperature in her garden every hour during the school day. She made a line graph of her results.
What was the temperature at 11am?
The temperature at 11am was 14°C.
The key insight: Reading a line graph is like finding coordinates - go along, then up!
Common mix-up: Reading 11 instead of 14 by mixing up the axes. The horizontal axis shows TIME, the vertical axis shows TEMPERATURE. Read the value from the vertical axis.
These are the misconceptions we see most often in read line graphs, including the ones our practice questions are specifically designed to catch.
Struggling with read line graphs? The real gap is often in one of these earlier topics.
SEAGReady finds the exact step where your child gets stuck, teaches it with worked examples like the one above, and brings it back for review so it sticks.
Free to start · no card needed