Assessment/Testing

Acellus Academy

Online curriculum for Language Arts, Math, Science and History.  Includes video lessons, practice problems, and differentiated instruction.  Monthly tuition provides up to 5 courses per student, and students work at their own pace.  There are discounts for multiple students. Could be a pretty good deal, if you used it for several subjects.

Brightstorm

A subscription service w/ video lessons in math, science, language arts and test prep for high school.  The price is a bit high, but it looks like it would mostly cover math and science without much supplementing.

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