Physical examination in the morning and in the afternoon is mainly to prevent the occurrence of infectious diseases. Since the outbreak of the epidemic in COVID-19 in early 2020, many crowded public places and business premises have been closed accordingly. However, schools cannot be closed all the time. Online teaching has both advantages and disadvantages. The school will not start until the epidemic situation is under control and the situation tends to be stable. But COVID-19 has no real past, so the school, a crowded place, is the focus of epidemic prevention.
Physical examination in the morning and afternoon can detect the abnormal rise of students' body temperature in time, thus controlling the possibility of epidemic situation in time. However, many schools take this lightly because the epidemic situation is well controlled, and spend the time of physical examination in the morning and afternoon on teaching. For schools and students, morning inspection and afternoon inspection waste study time and delay the progress of the course, but they cannot be omitted. Once the epidemic happens again, it will be an accident for the faculty and staff of the whole school. Therefore, physical examination in the morning and afternoon is extremely important, which is occupied by subject teaching and should play its due role.
Self-study class, as its name implies, should be a time period for students to study freely. However, the huge academic burden makes students have to take up the time of self-study class to listen to lectures and compress their rest time to finish other after-school homework at home. This phenomenon makes the eyesight of students in China worse and worse, especially the myopia rate of primary and middle school students has increased dramatically. Many children under the age of ten put on thick glasses early because of the heavy academic burden.
A serious shortage of rest time is a health problem that all students will face. According to the research of Health Association, it is concluded that primary and secondary school students need to sleep for eight hours in order to maintain normal growth and healthy growth. Insufficient sleep time can easily lead to a series of adverse consequences such as decreased immunity, poor physical fitness, and easy to catch a cold and get sick.
In addition, extracurricular sports activities are also very important. Primary and middle school students need enough physical exercise time to promote their growth and development, and enough ultraviolet radiation can prevent calcium deficiency, vitamin D deficiency, myopia and other effects.
Therefore, it is correct to prohibit subject teaching in self-study class, but this measure is somewhat temporary, because the road is one foot high and the magic is one foot high, and the total amount of learning will not change. Even if self-study classes are prohibited, other times will be squeezed. The pressure of entrance examination and college entrance examination is mountain, forcing students and teachers to do so.