We import students' PSAT results, with their right/wrong answers coded to individual skills. pick the low-hanging learning fruit), then switch to improving the next skill with the greatest potential to increase their score. This isn't an appropriate approach for SAT prep instead, it makes sense to do bounded amounts of practice to try and make marginal skill improvements (i.e. Our regular learning product focuses students on practicing the same skill until they master it and can always answer it correctly. Given these requirements, I designed the following properties of the system: Students are generally averse to doing the painful work of simulating a full, timed practice test. Students don't know what the most common skill areas are on the SAT and how often they appear on the test. Students don't know what their specific strengths and weaknesses are. Students want to improve their score, not master learning concepts. With this freedom, I was able to design a product tailored to the needs of students preparing for the SAT, often with very short time horizons:

In creating Official SAT Practice, we were not restricted to using our existing practice infrastructure or progress mechanics.

Practice sat khan academy