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【教学内容】北师大版四年级上册第七单元《生活中的负数》第一课时《温度》。【教学目标】1.了解零下温度的表示方法,会正确读写,感受引入负数的必要性。2.通过借助温度计或生活经验,学会比较零下温度的高低,并初步感知温度背景下两个负数的比较方法。3.通过读写温度,初步感受了解负数在生活中的应用。
【Content】 Beijing Normal University version fourth grade on the seventh unit “Negative in life” the first class “temperature.” 【Teaching Objectives】 1. Understand the expression of zero temperature, will read and write correctly, feel the need to introduce negative numbers. 2. Through the use of thermometer or life experience, learn to compare the level of zero temperature, and the initial perception of the background temperature in the two negative comparison. 3. By reading and writing temperature, the initial experience to understand the negative application in life.