Today’s guest blogger is Kelly Liakos, a Calculus instructor for 20 years, who shares his site of Calculus Animations with us.

In 1996, the Math Department at Santa Fe Community College (where I taught) decided to add a technology component to its curriculum, which is the point at which I began developing computer animations and computer labs for my courses.

There are basically four ways in which components on my website have been used.

To get some idea of how this works see the page Calculus 1 – Limits and Derivatives. On this page the discussion is very similar to the discussion I used in lectures, with the animations being shown roughly in the order presented. Allowing for other examples and questions from my students that one page encompasses approximately four lectures.

2. At Santa Fe Community College there is also a Computer Lab component. On my Computer Lab page you’ll find several examples of computer lab projects (for Mathcad) that the students do. During lecture, the student has seen the theory, watched the animations, and now in the computer lab the student gets hands-on experience working in groups of 2 or 3 to apply what they have learned. In some cases this serves to clarify what is they are supposed to have learned.

Initially, I spend a lot of time answering questions to make sure the student is familiar with Mathcad, but as time goes on the students do it without my supervision. In fact, many of the lab assignments are assigned as out of class projects with no supervision at all.

3. The animations and notes also serve as an out-of-class resource for the students to view (as little or as much as needed) to reinforce what they might have missed in lecture. As the resources are available it is the next best thing to actually recording lectures.

While we do spend time in lecture discussing techniques of differentiation and integration, with the reform movement, the focus is much more on understanding the theory and applications. In many of the applications once we have the set up and explanation we let the computer do the mechanics.

Of course the extent to which an individual instructor stresses the mechanics varies widely and I’ll not even begin to discuss this here. Basically my theory is that when you combine the theory and technology you have Calculus at its most powerful.

The reason I decided to stop teaching at this time was so that I could concentrate on developing animations and the corresponding notes. My website contains my ideas on my various courses but I would also be interested in developing animations to supplement other professor’s ideas as well.

Thanks Kelly for the post!

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