Line graphs
Construct and interpret line graphs for continuous data (e.g. temperature over time, plant growth); read intermediate values, identify trends, and solve comparison and difference problems
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1858 concepts · 9 subjects
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1 approach
Line graphs means practising the idea at the table with counters or paper models and one clear check. We will demo once, then your child tries.
Materials: 20 counters; Paper and pencil. Adult models 12 − 4 by removing counters, then writes the difference. Child solves three subtraction problems with counters and records each difference. Done: three correct differences with counters matching the writing. Stop after the fresh check; keep optional challenge for another day.
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Start practiceLine graphs practice
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Learning resources
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Illustrative Mathematics · Practice link — not the full lesson
Link-Cube Addition
Before you open · source notes
Link-Cube Addition supports line graphs. Not every worksheet pack.
Free, no sign-in. A teacher solution is on the same page, so use the student view with your child.
Before you openAsk the learner to explain one step of “Link-Cube Addition” in their own words.
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Source, access and review notes
Public Illustrative Mathematics task page. The .html address responds HTTP 308 to this URL. An anonymous GET of this URL on 2026-11-12 returned HTTP 200 with no login or payment prompt. Where a teacher solution is present, it is on the same page as the student task; this check did not find a separate locked student view. An adult can use the student view section and should not read a solution aloud. Advertising was not observed in the fetched HTML text; that is not a browser, device, or ad-free guarantee. This is a paper or discussion task, not an automatically marked interactive game. Opening the link does not save practice or assess mastery. Diagrams on the page use missing or filename-only alt text, so they are not an accessible image equivalent. Accessibility still depends on an adult describing the picture.
Illustrative Mathematics. “Link-Cube Addition.” Licensed CC BY-NC-SA 4.0. External task; Gakuva does not copy, host, embed, or redistribute it.
CC BY-NC-SA 4.0 — link only
Check understanding
- Read values from a line graph showing temperature over a day, including estimating between plotted points
- Construct a line graph from a table of continuous data, choosing an appropriate scale and labelling axes correctly
- Use a line graph to solve a two-step problem, such as finding the time period with the greatest rate of change
“If your child recorded the temperature outside every hour for a day, could they plot those readings on a line graph with proper labels — and then use it to answer questions like 'when was it warmest?' or 'how much did it drop between 3pm and 6pm?'”
Curriculum record
- Type
- Representational
- Subject
- Mathematics
- Domain
- Data & Statistics
- Age range
- Ages 10–13
Standards