The "Exploration of Pythagorean Theorem" is a set of exploratory learning tools aimed at the connection between elementary and junior students: it includes three types of right angled triangle magnets, a collage grid board, and an activity manual. Students use the four steps of "layout measurement calculation verification" to manually reorganize two small squares into a large square. They intuitively discover that a ²+b ²=c ² and verify classic arrays such as 3-4-5 and 5-12-13. Accompanied by animated QR codes and exploration cards, guide the analysis of measurement errors and the application of inverse theorems, making ancient theorems "visibly valid" in the hands of the moving hands.