Learning goals: Teacher Facing Categorize data sets, and describe (orally) the properties used to create categories. Describe (orally) features of data on scatter plots, including “linear” and “nonlinear association” and “clustering” using informal language. Explain (orally) what might cause a nonlinear association or clustering of data points in context. Full lesson plan (warm-up, activities, synthesis, cool-down prompt) from 8.6 Associations in Data, Grade 8.