Break out the sidewalk chalk, it’s time for #Mathwalk! This summer, AoPS Academy students are preventing summer slide by putting their creative problem-solving to work — chalking out math problems on sidewalks around their community for neighbors to solve.

This New Year, we’re challenging YOU to Resolve to Problem Solve. We want you to pledge to solve problems with your student for the whole month of January. AoPS have all types of free resources that make it easy!

In the 12 days of X-Math, our four little monsters take on their own holiday preparations at the North Pole. Each day, we reveal a new puzzle — and slice of our seasonal story string. Can you solve all 12 days of our holiday tale?