Black belt (martial arts) of ability when using these tactics and are sometimes referred to as McDojos or belt factories. In some Japanese schools, after obtaining a black belt the student also begins to instruct, and may be referred to as a senpai (senior student) or sensei (teacher). In others, a black belt student should not be called sensei until they are sandan (third degree black belt), or the titles kyosa or sabom in Korean martial arts as second degree or higher, as this denotes a greater degree of experience and a sensei must have this and grasp of what is involved in teaching
Japanese martial arts refers to the adaptation or refinement of those tactics and techniques to facilitate systematic instruction and dissemination within a formal learning environment. The historical origin of Japanese martial arts can be found in the warrior traditions of the samurai and the caste system that restricted the use of weapons by other members of society. Originally, samurai were expected to be proficient in many weapons, as well as unarmed combat, and attain the highest possible mastery of combat skills. Ordinarily, the development of combative techniques is intertwined with the tools used to execute those techniques. In a rapidly changing world, those