"Smartbox" is a modular educational toy with basic math algorithm for Children, 3-9 year-old is they rapid development period of cognitive ability, they receive a large number of color, number, space and other information. At this time, giving children appropriate enlightenment input can greatly develop and guide they logical thinking. "Smartbox" is based on the form of traditional building blocks, with four NFC algorithm modules, which are two digital modules + algorithm modules + display modules. When a group of modules get close to the others correctly, the display module will display the answer of the corresponding algorithm, and play the prompt tone of the answer. According to the level of kids’ understanding ability, the number of modules should be appropriately increased or decreased, so as to adjust the difficulty of the algorithm. Let children learn and grow happily and enlighten the future in playing~