A three-year internship in middle school is enough for 0.5 years. According to the regulations of the national education authorities on the teaching management of middle schools, the teaching plan of middle schools consists of two parts: 2.5 years of on-campus classes and 0.5 years of off-campus practice.

0.5 years can be arranged for the first grade 1 ~ 2 weeks, the second grade 1 ~ 2 months, and the third grade for 4 ~ 5 months.