CLEVELAND, Ohio -- One little command can cause hands to tremble, mouths to wick dry, sweat to bead on the forehead: "Find X." You know what I'm talking about. It's the dreaded math test. Uh, no ...

Under the Common Core State Standards, Algebra 1 is a much tougher course than what was taught previously in most states, teachers and standards experts say, in part because many of the concepts that ...