教学内容青岛版《数学》四年级上册第122页~123页。教学目标1.在解决实际问题的过程中,理解和掌握小数四则混合运算的运算顺序,并能正确地进行计算。2.在运用知识独立提出和解决问题的过程中,发展初步的归纳、概括、推理能力和解决实际问题的能力。3.在解决实际问题的过程中,进一步感受三峡工程的宏伟,激发热爱祖国的情感, Teaching content Qingdao version of “Mathematics” fourth grade on the first page 122 ~ 123 pages. Teaching Objectives 1. In the process of solving practical problems, understand and master the arithmetic sequence of the four mixed arithmetic operations, and correctly calculate them. 2. In the process of using knowledge to propose and solve problems independently, we should develop a preliminary ability to summarize, generalize, reason, and solve practical problems. 3. In the process of solving practical problems, we should further experience the magnificence of the Three Gorges Project, stimulate the emotion of loving the motherland,