Five full days of substitute-ready Algebra 1 in one no-prep download, built for the problem that makes a math absence hard: the person covering your room almost certainly cannot teach algebra. Nothing ...

A worksheet on expanding and simplifying expressions and proving other identities using the identities for the square of a sum or a difference of two terms. Solutions are included. Looking for a ...

Following the previous entry, this is the development log for "Math Gym," a calculation training app for middle and high school students. This time, I will look back at the work I did on September ...