Mathletics is an interactive online learning program used in over 2000 schools and 10 countries to improve math skills. It uses games and interactive elements to make learning math fun and engaging for students. Some advantages of the program include allowing students to learn at their own pace and continue learning at home. However, there are also disadvantages like limited teacher interaction and feedback. The program has shown success in improving students' math skills, with some doubling their arithmetic abilities or achieving high scores on standardized tests. Getting the most out of it requires active parental involvement and encouragement of regular use.