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一、教学目标使学生理解和掌握整十数除整十数、几百几十的数(商是一位数)的口算方法,能正确地进行口算。使学生经历探索口算方法的过程,通过合作、交流、讨论优化算理。感受数学与生活的联系,培养学生用数学知识解决实际问题的能力。二、教学重难点探索口算方法;掌握整十数除的口算方法。三、教具、学具准备多媒体课件。四、教学过程
First, the teaching objectives to enable students to understand and grasp the whole number of ten whole addition to the whole number of ten, hundreds of dozens of numbers (quotient is a number) of mouth calculation method, the correct mouth. Make students go through the process of exploring the method of calculating, through cooperation, exchange, discuss optimization arithmetic. Feel the connection between mathematics and life, develop students’ abilities to solve practical problems with mathematical knowledge. Second, teaching heavy difficult to explore the port count method; grasp the whole number of addition to the port count method. Third, teaching aids, learning to prepare multimedia courseware. Fourth, the teaching process