优化教学结构，使学生爱学乐学青铜峡市培红小学马桂华一、有一个良好的开端，教学中，老师要精心设计“开场”环节，创造良好的课堂开端．上课时可先结合教学内容进行１分钟左右的口算基本训练，或组对组进行提问，口答训练，如常见的分数、小数互化：等，或３．１４的２... Optimize the teaching structure so that the students can learn to learn. Ma Guihua, Peihong Primary School, Qingtongxia City, has a good beginning. In teaching, teachers should carefully design the “opening” session and create a good beginning of the classroom. In the class, you can combine the teaching content for about 1 minute orally basic training, or group questions for the group, quiz training, such as common scores, decimal interactions, etc., or 3.14 for 2...