Explaining Your Math: Unnecessary at Best, Encumbering at Worst
Common Core-era rules that force kids to diagram their thought processes can make the equations a lot more confusing than they need to be.

Common Core-era rules that force kids to diagram their thought processes can make the equations a lot more confusing than they need to be.

Since the late 1960s, well-meaning educators have shied away from placing kids in "faster" and "slower" classes. Now that trend is reversing—and for good reason.