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Re:Synthesis Tutor – Your child’s own superhuman math tutor by rahimnathwani on Thursday June 08, 2023 @05:45PM (#36249631)
How it's similar:

- focused on mastery

- good treatment of math

How it's different:

- doesn't cover elementary school topics

- lessons are text, not video

- paid, not free

- lessons are presented based on what you already know (e.g. you can't choose to study a topic before you've demonstrated mastery of all topics it depends on)

- I pick the next lesson from a very small set (usually 5 options, sometimes fewer), so there's no wasting time choosing what to study next

- really great spaced repetition system that prevents forgetting

Re:Synthesis Tutor – Your child’s own superhuman math tutor by symic on Thursday June 08, 2023 @06:08PM (#36249901)
Thanks for the head’s up.