On the first day of school I started putting a challenging math problem on the window of my classroom for students to solve. What started with 1 student, slowly grew into 10-20 students coming everyday to solve the new problem. There are 5 categories of problems each with 20 problems ranging from 1 to 5 star difficulty level. ProbabilityLogicNumbersGeometryCombinationsThis slideshow is created by 2 of those students who have put countless hours into the drawings, design, creation, and solutions