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Simulating a Dynamic Lecture Online: Circular Flow as an Example

Lectures placed online have not been sufficiently dynamic. Simple PowerPoint presentations, even those that are streamed, can fail to hold students attention. They often seem canned and impersonal. This can be a problem, especially for distance-learning students who may feel isolated from their professors. This alternative approach is closer to a traditional classroom's dynamics. On the Web, students can watch and hear an economics professor sketch models, write statements, solve equations, and calculate numbers. This is accomplished via PowerPoint, a tablet computer with a pointing device, a microphone and Camtasia screen capture software. The lecture is streamed into flash format and then uploaded to the Web site for students to view. Because of built-in dynamics, this learning tool is especially useful for online students and those with less developed English skills. It also creates an opportunity for hybrid instruction. Students can be asked to view lectures online and come to class prepared to participate in follow-up learning activities. This format has received rave reviews from students who appreciate the ability to replay a dynamic lecture. Rewinding part or the entire lecture is a distinct advantage over the traditional classroom lecture. Students with English as a second language appreciate having time to absorb the lectures, repeat them if necessary, and assure themselves that they are prepared for class. The Web site example of macroeconomics circular flow contains a complete package, including a set of formal lectures, lecture notes, assessment questions, a supplemental lecture, and the corresponding reading assignment. The Web site also contains a description of how others can create similar dynamic lectures.