Learning while thinking is a giant in the field of mathematics teaching and training, and it is a household name. This large institution has published a set of very popular and best-selling math books, The Secret Book of Learning while Thinking, which has sold 3 million copies. The official introduction of this set of books is: learning and thinking to create mathematical thinking 12 level system, which was originally created by famous domestic mathematical experts.

The course "The Secret Book of Learning Thinking" (blue cover) has two books in each grade, each with about 20 lectures, and one lecture in six grades with 240 lectures, covering all the knowledge points of the eight major problems of primary school Olympic mathematics calculation, integer, graphics, application, itinerary, combination, counting and synthesis.

The exercise "Learn and Think Cheats" (orange cover) is combined with the tutorial "Learn and Think Cheats" as the exercise after learning the tutorial, and each lesson corresponds to the tutorial.