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教学内容:北师大版《义务教育课程标准实验教科书·数学》四年级上册第87页。教学目标:1.知识与技能:结合现实生活中气温变化的实际情况,认识温度计;了解表示温度的单位——摄氏度,能正确读写温度;会比较两个温度的高低,感受零度是零上和零下温度的分界线,初步理解零上和零下温度是相反意义的量。2.过程与方法:借助熟悉的生活情境,结合实际生活中气温的变化体验零摄氏度的重要性,做好负数学习的前期渗透;在学生的实践亲历与合作探究过程中直观感受温度的意义。3.情感、态度与价值观:结合具体的情
Teaching content: Beijing Normal University edition of “compulsory education curriculum standard experimental textbook · Mathematics” fourth grade on the first 87 pages. Teaching Objectives: 1. Knowledge and skills: combined with real life temperature changes in the actual situation, know the thermometer; understand that the temperature of the unit - degrees Celsius, can read and write the temperature correctly; will compare the two temperature levels, the feeling zero degrees is zero And the sub-zero temperature of the dividing line, a preliminary understanding of zero and minus the temperature is the opposite sense. 2. Process and methods: With the familiar life situation, combined with the actual temperature changes in life experience the importance of zero degrees Celsius, good pre-penetration of negative learning; students in the process of practical experience and cooperation in the process of intuitively feel the significance of temperature. 3. Emotions, Attitudes and Values: Combining Specific Emotions