Lesson 22 Comparing correlations
Lesson plan
Piagetian Level | Learners Thinking and abstract of the activity | |
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3 B Mature Formal |
![]() ‘you can see that the narrower the range, the higher the ratio of confirming cases' 'So the ratio tells you how closely the results relate to each other’. |
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‘it's 17/5, or just over 3 times as many confirming cases’ | ||
3A Early Formal |
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Preparing the 4-cell transforms of the data |
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2B* Concrete Generalisation |
Applying ratio reasoning to the comparisons | |
![]() Handling the comparisons in terms of median and range |
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Mature concrete |
Episode 1 Intuitive comparisons of correlation |
Episode 2 Measuring correlation using confirming and disconfirming values |