The internet is torn over an elementary-level math equation which left many scratching their heads. The viral math problem has X users stumped - but the answer comes from lessons learned in fifth or ...

Match a story problem and an equation. Write a story problem to match an equation. Subitize with a 10-frame and then build one more than your number on the Rekenrek (counting buddy). Use Notice and ...

This jingle has helped generations of algebra students recall the quadratic formula that solves every equation of the form $latex ax^2+bx+c=0$. The formula is as ...