Teaching college mathematics can be a daunting task, indeed. It's nice for seasoned professionals and others to have a solid primer on the subject and this guide from Professor Suzanne Kelton is quite useful. The 54-page...

Written by Leo Moser and presented by the Trillia Group, this virtual text introduces visitors to the theory of numbers. After agreeing to the terms and conditions of use, users will be able to download the full...

This wide-ranging and informative online course from Annenberg Learner can be a powerful resource for both high school and K-8 teachers. The site features 10 two-and-a-half hour sessions on a range of related topics,...

What is the difference between the arithmetic 3+5 = 5+3 and the algebraic a+b = b+c? One is a specific fact, another is a pattern valid in a multitude of situations. While arithmetic may hint at some regularities,...

Written by Tony R. Kuphaldt, this chapter of All About Circuit's fourth volume on Digital circuits examines Boolean algebra and logic. The chapter has a helpful introduction that discusses the difference between real...