Homework will be assigned during the study of each subject, there will be a preview task in the new class, and there will be a summary task after the study.
The first grade refers to the first grade of junior high school, which is the primary stage of middle school career and an important stage of adapting from primary school to middle school. All the courses in senior one are to lay the foundation, and there will be physical chemistry in senior two and senior three, so students must master what they have learned in senior one! 、
Junior high school is the primary stage of middle school. Generally speaking, the middle school with nine-year compulsory education is the transitional stage to senior high school, and the school year is three years.