小学数学课型主要有新授课、练习课和复习课。那么,新授课一般主要包括了复习、新授、练习、总结等环节。其中,新授环节至关重要。在这个教学环节里,要解决教学重点、突破教学难点;通过这个环节的教学,学生学到知识、增长智慧。这个环节的有效实施,也就决定了一节课的质效。因此,老师通常就把这个环节叫做教学关键环节。 Primary math class mainly new lectures, practice class and review class. Well, the new lectures generally include review, new grant, practice, summary and other links. Among them, the new grant link is crucial. In this teaching session, we must solve the teaching problems and break through the teaching difficulties. Through the teaching of this session, students learn knowledge and increase their wisdom. The effective implementation of this link also determines the quality of a lesson. Therefore, teachers often call this link a key part of teaching.