一、科学的时间安排对于中小学生意味着什么?保证儿童充足的睡眠时间和户外活动时间,对促进儿童生长发育、恢复疲劳、提高学习效率至关重要。学生晚上上床睡觉时间随着年级的增高而推迟,表现出明显的梯度。学生白天在校疲倦感的发生率随着年级的升高而上升,从四年级的18.1%上升 1. What does science time planning mean for primary and secondary school students? Ensuring that children have adequate sleep and outdoor activities is crucial to promoting children’s growth and development, reviving fatigue, and improving learning efficiency. The student’s bedtime at night is delayed with the increase in grade, showing a clear gradient. The prevalence of fatigue among students during the daytime rose with grades, rising from 18.1% in the fourth grade.