WESTERLY, R.I. -- Any adult who has tried to help a second-grader with homework has noticed math is not what it used to be. Now schools are unlocking the secrets of Common Core math for mystified ...

Do you remember the days when 5+5=10? For parents who grew up in the ’80s and ’90s, it was that simple. But now, as many of us help our kids with their homework using the new Common Core math ...