Interleaving versus random task switching
Mixing related problem types can give you practice choosing a method. Constantly switching between unrelated distractions does not provide that same task. The choice of material and your current level matter.
By Zehano · Original AI-assisted explanation and worked example · Updated 16 October 2026 · Editorial approach
A worked example
After learning how to add and multiply fractions separately, try a small mixed set. Before each problem, identify which operation is requested and choose the corresponding method. Switching from fractions to a message notification and then to an unrelated video would not be the same exercise: the interruption has no instructional relationship to the problem set.
Try it in three steps
- Learn enough of each method to attempt it.
- Mix related examples deliberately.
- Check both the chosen method and the result.
What to watch for
The session builder alternates your lists; it cannot decide whether the mix is appropriate. Keep categories meaningful and reduce the mix if you cannot yet attempt any item.
Apply it to your own material
Choose one topic from your current course or project. Write down the question you want to answer, make an attempt, and keep a note of how you checked it. Use the example above as a pattern; replace its subject matter and assumptions rather than copying an answer into a different task.
Open Interleaving Session Builder ↗Background reading
These sources explain the broader learning principles. Zehano’s examples and software are original; they are not endorsed or individually evaluated by the source authors. This guide is not a systematic evidence review.
- Learning Scientists: six strategies for effective learning
- Retrieval Practice: learning by bringing information to mind