“People tend to try to learn in blocks,” Bjork said. “Mastering one thing before moving on to the next.”
Instead of doing that Bjork recommends interleaving. The strategy suggest that instead of spending an hour working on your tennis serve, you mix in a range of skills like backhands, volleys, overhead smashes, and footwork.
Bjork explains that successful interleaving allows you to “seat” each skill among the others. “If information is studied so that it can be interpreted in relation to other things in memory, learning is much more powerful,” he said. There’s one caveat: Make sure the mini skills you interleave are related in some higher-order way.”