The Linear Algebra Problem Book is an ideal text for a course in linear algebra. It takes the student step by step from the basic axioms of a field through the notion of vector spaces, on to advanced ...

Because math is so cumulative in nature ... Try it yourself. Experience a problem with basic facts. Active working memory is the ability to remember what you're doing while you are doing it ...

If a middle-school student cannot quickly recall basic facts like 2 + 3 = 5 or 6 x 3 = 18, this will likely slow him down when working on a more complex problem. For many people, math facts come ...