In this computing determinants activity, learners explore methods of computing determinants. They complete determinant problems by using the co-factor method, the "big formula" and the use of product of the pivots. This two-page...

Your learners combine their knowledge of real and imaginary numbers and matrices in an activity containing thirty lessons, two assessments (mid-module and end module), and their corresponding rubrics. Centered on complex numbers and...

This site is a quick review of the functions and identities in trigonometry. Very helpful site.

This list of trigonometric identities includes the factoring formulas near the bottom. A great tool for reference.

This Clark University trigonometry tutorial site features questions and answers about what students can learn from trigonometry.