This apLet contains four data sets, all radically different, which all have the same summary statistics (mean, variance, correlation, etc.).
	The idea is to show students that the summary stats are not the end of the story - that a graph is still a good idea, as is looking at the residuals.

Chain Rule

This apLet contains a number of prepared sets of functions of increasing complexity.
With the apLet is a worksheet on which the student records the result of differentiating the functions using the algebraic differentiation capabilities of the Function apLet.
With a bit of luck, the student should be able to deduce the Chain Rule from viewing the common behaviour of the derivatives.