教学内容:人教版九年义务教育六年制小学数学教材第五册第四单元“混合运算”。教学目标1.使学生进一步掌握含有两级运算的运算顺序,能够正确脱式计算三步式题;2.培养学生良好的质疑问难及同伴间的协作能力,体验数学与生活的密切联系,激发学生学习数学的兴趣。教学重点:掌握混合运算的计算顺序。 Teaching content: People’s Education Edition nine-year compulsory education six-year primary school mathematics textbook fifth unit fourth unit “mixed operation ”. Teaching Objectives 1. To enable students to further grasp the order of operations with two levels of computing, can correctly off-calculation three-step problem; 2. Students develop good questioning and inter-peer collaboration ability to experience the close relationship between mathematics and life, to stimulate students Learn math interest. Teaching focus: grasp the order of calculation of mixed computing.