If you’ve read the recent article My Daughter’s Homework is Killing Me, then you know that parents all over our country are scratching their heads, wondering when homework got so dang hard. I think ...

A high school student is tutored in algebra. Tutors and teachers report that more students struggled in the course this academic year. Credit: Sarah L. Voisin/The Washington Post via Getty Images The ...

Simultaneous equations are two or more equations with two or more variables. They are simultaneous because they can be solved to give values for the variables that are equal in each equation. This is ...