Glad a few folks already posted this. I mean, this is just good teaching, /especially/ in a world of standardized tests. I don't think I can rephrase it bette

Glad a few folks already posted this. I mean, this is just good teaching, /especially/ in a world of standardized tests. I don't think I can rephrase it better than the document already states: > And teaching math isn't just about solving specific problems. It's about helping students understand the deeper mathematical concepts so that they can apply them throughout their lives. Students can arrive at the right answer without grasping the bigger concept; or they can have an “aha” moment when they see why they got an answer wrong. Sometimes a wrong answer sheds more light than a right answer. It is hugely useful to be able to interrogate misleading paths to seemingly correct but ultimately incorrect answers. Half of standardized test answers seem to be written to intentionally capture such missteps.