Science textbooks and classes mostly emphasize what are considered by today's standards the "right" or "correct" interpretations of particular phenomena or processes. When "incorrect" ideas of the past are mentioned at all, it is simply to point out their errors, with little attention as to why the ideas were put…

Gel electrophoresis is the single most important molecular biology technique and it is central to life sciences research, but it is often too expensive for the secondary science classroom or homeschoolers. A simple safe low-cost procedure is described here that uses household materials to construct and run DNA gel electrophoresis. Plastic…