These sites contain information about Linear Regression. Here are several interactive computer-based tools to show students linear regression relationships of data and their correlation coefficient. There are also materials showing how to calculate slop, intercept, and regression equation.
Here are interactive computer-based tools providing students with the opportunity to easily investigate the relationship between a set of data points and a curve used to fit the data points. Four lessons are included.
Here is a comprehensive introduction to linear regression. Students will learn concepts such as slop and intercept, how to measure the goodness-of-fit of linear regression, and also the confidence interval of a regression line.