Math-U-See is a mastery math program running from elementary all the way through Calculus.  Though I have not personally used Math-U-See it is a curriculum that has been around in homeschool world for a long time.  It was written by Steve Demme a God-fearing Christian man, who also runs Building Faith Families.  Math-U-See is well worth your time to consider using in your homeschool.

Click here to learn more about Math U See.