教学单元是介于学期教学和课时教学之间相对独立的完整的最小教学单位。因此 ,以单元为单位组织教学 ,便于弄清单元目标与课时目标之间的层次关系 ,便于系统地有计划地反馈调节教学过程 ,从单元整体上较好地落实因材施教 ,防止缺陷积累。教学单元具有相对完整的知识体系 ,因而 The teaching unit is a relatively independent and complete minimal teaching unit between semester teaching and class teaching. Therefore, teaching is organized on a unit-by-unit basis to make it easier to understand the hierarchical relationship between unit goals and class goals, to facilitate systematic and systematic feedback of adjustments to the teaching process, and to better implement the individual instruction in the unit as a whole to prevent defect accumulation. The teaching unit has a relatively complete knowledge system.