There is a mysterious tree house. Dr. Magic Turtle is learned and capable, and has mastered bilocation. Wonderful Rabbit is quick-witted and playful, and has arms that can be infinitely elongated. Magic Turtle and Wonderful Rabbit often go to Pig Town to play, but unfortunately, all kinds of unexpected events occur frequently here. Having a strong sense of justice and ready to help the weak, Strange Turtle and Wonderful Rabbit go to the wharf, the thrilling dinosaur valley, the gloomy forest, the disorderly old warehouse, etc. They work together in the story to calculate, find the law in each situation, identify the direction, read the patterns, meet various mathematical challenges, and solve the puzzles, helping the three pig brothers and sisters to solve the difficult problems. Children need to keep thinking as the story unfolds, and their mathematical thinking ability will be stimulated in this process, and their multi-dimensional thinking and problem-solving abilities will be exercised.