Wasan is a traditional form of Japanese mathematics that developed during the Edo period (1603-1868). It focuses on solving problems using geometric and algebraic methods, often incorporating visual aids like diagrams. Wasan was primarily practiced by scholars and was distinct from Western mathematics, which began to influence Japan later. The term "Wasan" translates to "Japanese mathematics," and it includes various techniques and concepts, such as sangaku (mathematical puzzles on wooden tablets) and sūgaku (the study of numbers). Wasan played a significant role in the development of mathematical thought in Japan before the introduction of Western methods.