This set of six Cd's offers high school students basic and useful practice in algebra 1, algebra 2, statistics, geometry, trigonometry and calculus. In the Algebra 1 CD, for example, students choose from 12 chapters and pick a sub topic. After a written (and pictorial) demonstration of the concept (e.g. ratio and proportion), students answer 10 questions to show comprehension.

Hint and Solution icons lead to useful and straightforward help, and general progress is described after each section. All things considered, although dry in format and somewhat lacking in depth, this handy set of CDs offers understandable explanations of difficult subjects.

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