Interleaving vs Blocked Practice
Career & Learning Craft

Interleaving vs Blocked Practice

Subtitle: Mix your reps to build real judgment

Left column - Blocked Practice:

Drill one type until it feels easy Order looks like AAAA BBBB CCCC Feels smooth and fast in the moment Great scores on the same day Weak recall a week later

Right column - Interleaving:

Shuffle related types in one session Order looks like ABCA CBAB Feels harder and slower Lower scores during practice Far better retention and transfer

Simple difference:

Blocked = learn the steps Interleaving = learn to pick the method

Use it when - Blocked: brand new skill, first exposure, raw basics Use it when - Interleaving: after basics land, exam prep, real work

Sticky note - Common beginner mistake:

Judging a session by how easy it felt. Mild confusion while practicing is the sign learning is sticking.