“All too often, instruction assumes that students build knowledge sequentially, from one prerequisite idea to the next, in a linear, hierarchical manner that mirrors the design of traditional textbooks and lectures. In real life, however, we tend to advance our understanding through a process that is much more haphazard and stochastic.” The authors of this article explain how video can convey difficult ideas in science. They say that while the traditional approach presents ideas in a linear progression, we make sense of this material through a process that is much more malleable and subject to many more influences than we currently understand or acknowledge.