Narrator: This is Science Today. When it comes to learning about science, students do best studying fewer, but more in-depth topics - rather than trying to learn several topics at once. Marcia Linn, a professor at the University of California, Berkeley's Graduate School of Education, says the more in-depth learning approach adopts the decades-old notion - that "less is more."
Linn:We discovered that it was typical for students to have a new topic, like genetics or heat and temperature or electricity or mechanics every single week in middle school. And we just couldn't imagine that they would be able to master anything under those circumstances.
Narrator: In a 15-year study, Linn discovered science students not only retained more with a well-planned, in-depth curriculum - but that they became better lifelong learners.
Linn: It seems clear that if you don't have any experience of what it means to understand something in-depth, it's going to be very, very difficult to actually ever learn something in-depth in the future - or to be a lifelong science learner.
Narrator: This deeper coverage approach has already been adopted successfully in countries such as Japan and the Czech Republic. For Science Today, I'm Larissa Branin.