CDL Drill & Review
Topic drill control surface

Choose the exact weak cluster you want to pressure-test.

Use topic drill when mixed practice has already shown the failure pattern. This page is not just a topic index anymore — it is the control surface for choosing the next repair route on purpose.

If you are not sure which topic to choose

Use the progress page and recent result blocks first. Topic drill is strongest when the product has already exposed one cluster as the repeat offender.

When topic drill is the right move

  • One topic keeps dominating your result page weak-topic block.
  • You can name the weak area, but you still need pressure-testing inside that cluster.
  • You want to repair one failure type before going back to mixed practice.

How to use this page well

  1. Pick the cluster that produced the most misses.
  2. Run a focused 5-question drill on that area.
  3. Use review to see whether the same exact mistakes repeat.
  4. Return to mixed practice only after the cluster stops collapsing.

Available drill clusters

Each card shows the current topic scope, question count, and the kind of repair work that topic is best for.

Go back to mixed practice

Recent pattern from stored sessions

No stored session pattern yet.

Suggested drill route

Run one mixed session first if you still do not know the weak cluster.

Why topic drill matters

Topic drill makes recurring weakness visible. Instead of treating every miss as isolated, it pressures the same area until the learner can tell whether the issue is memory, wording, or pattern recognition.

Use it after review, not before thinking

The strongest topic-drill sessions happen after the learner already knows what felt unstable in the last round. That turns drilling from random repetition into targeted repair.