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SAT/ACT Prep

Two tests, one section each. The SAT and the ACT ask for the same mathematics in different shapes, so they are two courses here rather than one. Each opens with a diagnostic — two questions on every topic, scored on the page — that tells you which of the topics you actually need to read.


  1. Step 1Sit the diagnostic

    A short test in the shape of the real one — thirty-two questions for the SAT, thirty-eight for the ACT. It is scored on the page, and no clock stops you.

  2. Step 2Get the map

    Every question is tied to one topic. The results say which topics you missed, and which you did not need to read.

  3. Step 3Read what you missed

    Each domain is one lesson, each topic one step in it, with a worked problem and the trap the test sets. Skip the rest.

2 of 2 open