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一、案例1(一)设计实录人教版七下册“7.1.2平面直角坐标系”第1课时.第一环节:提出问题1.提问(上一节课后作业):问题:新兴初中十周年校庆,请你为来宾描述学校的位置?学生回答简记:第一类,各种口语表达,如天河路口往南200米等:第二类,坐公交车,用数轴示意图1、2、3表示.2.针对学生可能会有的不同表示方法(如:原点选择不同),原设计中,教师进一步引导学生体会:把原点选在天河路口,可以用正、负数更好地区分不同的方向.又:实际生活中,我们更习惯于“上北下南、左西右
First, Case 1 (a) Design Record PEP seven books ”7.1.2 Plane Cartesian Coordinate System “ the first class hours. The first link: Ask questions 1. Question (the last lesson homework): Question: The tenth anniversary of the emerging junior high school anniversary, please describe the location of the school for your guests? Students answer short note: The first category, all kinds of spoken expression, such as Tianhe intersection south 200 meters, etc .: The second category, take the bus, , 2,3 said .2. According to the students may have different ways of expression (such as: different origin selection), the original design, the teacher further guide students experience: the origin selected at the junction of Tianhe, you can use positive and negative areas better Points in different directions. Also: in real life, we are more accustomed to ”on the north south, left west