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
Korean martial arts to a portrait of the founder and/or to national flags). Many modern Korean martial arts also make use of colored belts to denote rank, tests to increase in rank, and the use of Korean titles when denoting the teacher. These include: NOTE: remove the word "nim" for the actual titles as "nim" is an honorific meaning "sir" or its equivalent. These Korean terms are based on Confucian rank systems (with the same Chinese characters). Many schools also make use of Korean terminology and numbers during practice, even if located outside [South] Korea. Korean martial arts are usually practiced in a