Scatter Graphs & Correlation
Describe simple mathematical relationships between two variables using scatter graphs, identify positive, negative, or no correlation, and use a line of best fit to make predictions
Lesson
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“Scatter Graphs & Correlation means practising the idea at the table with counters or paper models and one clear check. We will demo once, then your child tries.”
Bring to the table
- Scatter-plot grid on paper
- A short list of (x,y) pairs
Extra for the adult
Worked example. Points rising left-to-right show a positive correlation.
Optional challenge. For Scatter Graphs & Correlation, add one harder example after success.
What to notice. Keep one parent note: examples tried; results; support used. This session samples Scatter Graphs & Correlation, not mastery.
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1 approach
Scatter Graphs & Correlation 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: Scatter-plot grid on paper; A short list of (x,y) pairs. 1. Say the goal of Scatter Graphs & Correlation in plain words once. 2. Adult plots five points and describes the trend as positive, negative, or none. 3. Child plots three small scatter sets and names each trend. 4. Fresh check: one fresh trend description. Record and stop. Done: three scatter plots with a trend word each. Proof: parent note of examples and results. Stop: End after the fresh check; keep optional challenge for another day.
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Learning resources
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Secondary
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Secondary supports Scatter Graphs & Correlation. An adult previews and guides; this is a learning page, not a scored quiz.
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Check understanding
- Plot bivariate data on a scatter graph and describe the type of correlation observed
- Draw a line of best fit by eye and use it to estimate a value within the data range
- Explain what positive, negative, and no correlation mean in the context of real data (e.g., temperature vs. ice-cream sales)
“If your child plotted a scatter graph — say, comparing hours of revision and test scores — could they draw a line of best fit, describe the pattern, and use it to make a prediction?”
Curriculum record
- Type
- Conceptual
- Subject
- Mathematics
- Domain
- Data & Statistics
- Age range
- Ages 13–14
Standards