Learning goals: Teacher Facing Fit a linear model to a scatter plot of data and informally judge its goodness of fit. Interpret (orally and in writing) the rate of change and vertical intercept for a linear model in everyday language. Predict (extrapolate) and estimate (interpolate) values not given in the data set by using an equation representing the linear model. Full lesson plan (warm-up, activities, synthesis, cool-down prompt) from Alg1.3 Two-variable Statistics, Algebra 1.