To develop mastery, students must acquire component skills, practice integrating them, and know when to apply what they have learned.

Expose and reinforce component skills

• Enlist the help of someone outside your discipline to decompose a complex task. This can help to reveal your blind spots. – those things you may have skipped over assuming that students will ”just know.”
• Diagnose weak or missing component skills and provide isolated practice for them. This will focus student energies on those parts of a task that most need additional attention.

Build fluency and facilitate integration of skills

•  Assign exercises that are specifically designed to increase students’ efficiency
  and automaticity. Be explicit about the level of fluency you expect students to
  achieve (e.g., “Practice these sorts of problems until you can complete one
  question in about 10 minutes.”).

Facilitate transfer of skills