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 ...

Every Saturday morning at 10 a.m., Jason Zimba begins a math tutoring session for his two young daughters with the same ritual. Claire, 4, draws on a worksheet while Abigail, 7, pulls addition ...