Interleaving — Mix up closely related topics.	William Wieland
We often master skills in isolation and sequence them from easiest to most difficult, but science has proven that learning two or more related concepts or skills is beneficial.
Musicians do this every time they perform. They are think about pitches, rhythms, dynamics, articulations, etc.
When reviewing music fundamentals, ask the students to define inversion for intervals, chords, melodies, and counterpoint.