目前小学数学课堂教学仍存在教师讲得多,学生练得少,教学方法机械生硬,教知识和培养能力脱节等问题.教师如何才能在课堂上正确处理教与学、讲与练、知识与能力之间的关系,这里,仅就新授课的课型结构,谈一点看法.一、讲练课.这种课型要求教师讲解和学生练习相结合,有讲有练.在小学数学教材中,对于新旧知识联系不怎么多或很难理解的内容,教师可适当多讲一些.如,小数、分数,正、反比例的意义,分数乘法、除法法则的推导,较复杂的分数应用题,正、反比例应用题等内容.讲解时教师应抓住关键,突出重点, At present, there are still some problems in the classroom teaching of primary schools, such as teachers speaking more, students practicing less, mechanically rigid teaching methods, disregarding teaching knowledge and training ability, etc. How teachers can correctly handle teaching and learning, speaking and practicing, knowledge and ability in class The relationship between, here, only the new lectures on the class structure, talk about the point .A first class, this class requires teachers to explain and students practice a combination of speaking practiced in the primary school mathematics textbooks, For the new and old knowledge of the link is not very much or difficult to understand the content, teachers may be appropriate to say more, such as decimal, fractional, positive and negative sense of meaning, fractional multiplication, the division of law derivation, the more complex questions, Inverse proportion of application problems etc .. Explanations of teachers should seize the key to highlight the key points,