Over a multi-year period, I worked on several interrelated projects to develop teaching material for a first course in calculus (differential calculus) using various technologies. There are pages here describing these projects in more or less chronological order:

• an online distance education calculus course I began to design
• an interactive PDF version of a calculus lesson
• an experiment with using movies to communicate calculus
• an interactive supplement for a high school calculus textbook problem on bike racing.