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Interleaving, Explained Like a Friend

Informational · intermediate · for student learners

The problem this solves

I keep practising one topic at a time. Is that a mistake?

Primary keyword: interleaving practice

What you'll learn

  1. What interleaving actually changes
  2. Why it feels worse (and works better)
  3. A 30-minute interleaved block template
  4. When NOT to interleave

The science behind it: Interleaving

Interleaving is the practice of mixing different but related topics or problem types within a single study session, instead of blocking practice on one type at a time.

Why it matters

Interleaving makes practice harder in the moment, but builds the discrimination and flexibility needed to pick the right method when facing new problems.

How to apply it

  • Mix problem types within a study set instead of finishing one type before starting another.
  • Alternate between related but distinct skills, such as different brush strokes or different algorithms.
  • Return to earlier topics across sessions to keep the mix active.

Common mistakes

  • Believing blocking is more efficient because each item feels clearer.
  • Treating interleaving as random scrambling rather than as deliberate mixing of related material.
  • Giving up on interleaving because it feels harder than blocking.

Read the full concept: Interleaving.

Where this fits

Part of module Recall and Practice.

More articles in this module