Math Dice Jr. is one of ThinkFun's most popular games for the classroom. It's a mental math game, and makes a great holiday or birthday present for kids who like smart games and a challenge. Math Dice Jr. is made with high quality components, and comes with a very clear and easy to understand instruction manual - you'll be able to play within minutes of opening the box. Like all of ThinkFun's games, Math Dice Jr. is built to develop critical thinking skills and makes a great group activity. An extension of the Math Dice line, which is used in classrooms by elementary school math teachers across the country.