The book describes how to design a computer-based simulation lesson employing currently available Personal Computer and internet software and investigate its effects in learning situations. The heart of the lesson was the utilitarian Gas Law Simulation program that was incorporated into a hypertext interface display with active links to related notes and worksheets. The simulated lesson allowed students to see the relationships between the variables in graphical forms when a selected independent variable was manipulated and all the corresponding values were keyed into the Excel table. The...