Basic Math Skills Rescue: The Critical Foundations of Algebra - Part 1 and Part 2 by Richard W. Fisher, offering essential math skills for grades 3 through algebra.
Two books titled "Basic Math Skills Rescue: The Critical Foundations of Algebra" by Richard W. Fisher, Part 1 and Part 2, from the Mastering Essential Math Skills Series, featuring "Three Books in One!" content and free access to an online video library.