10.0
2023-06-13
Improvements and Bugfixes
5.5
2020-10-03
Bugfixing and Improvements
5.4
2013-08-26
Improvements and Bug Fixes
4.0
2012-06-01
Every lesson now includes multiple-choice self-tests.
3.0
2011-12-01
Every lesson now includes multiple video examples, interactive practice problems, a challenge problem, a worksheet of extra problems, and a notes page.