"My 9-year-old didn't hesitate when I asked her to help me try out
She grabbed my smartphone and went right to work gleefully creating an avatar decked out in top hat and mustache. But she'd gotten no further than the first problem before she felt the need to protest. "What?" she groaned. "Fractions?!""
With a little nudging, however, I soon had her working her way through the "easy" level, rolling a marble through a maze to solve problems that involved addition, subtraction and, yes, fractions.
Launched in 2012, Marble Math is based on Common Core standards and aims to make math practice fun for kids age 9 and older. Get a problem right and you receive points toward a new marble to save or use, which, simple as it is, proved enticing enough to garner a satisfied "yesss" when my kids earned one. Hit an obstacle and you lose points. Get a problem wrong and you lose a marble, though you'll have a chance to retry it or see the solution.