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[教学目标]知识目标:使学生认识“找次品”这类问题;初步了解解决方案。技能目标:学生通过教学活动,体会到解决这类问题策略的多样性,并能运用优化的方法解决问题。情感目标:体会数学学习在日常生活中的广泛应用,尝试用新学的方法解决实际生活中的这类问题。[教学重、难点]教学重点:使学生初步认识解决“找次品”这类问题的基本方法。教学难点:体会解决问题策略的多样性,学会运用优化的方法解决实际问题。
[Teaching objectives] Knowledge goals: to enable students to recognize “find defective ” such problems; a preliminary understanding of the solution. Skills Objectives: Students through teaching activities, to understand the diversity of strategies to solve such problems, and the use of optimization methods to solve the problem. Emotional goals: Experience the extensive application of maths learning in daily life and try to solve this kind of problems in real life with new learning methods. [Teaching heavy, difficult] Teaching focus: to enable students to initially understand the solution to “find fault” the basic method of such issues. Teaching Difficulties: Experience the diversity of strategies to solve problems, learn to use optimization methods to solve practical problems.