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教学内容:人教版四年级上册112页“数学广角”。教学目标:1.在具体操作过程中学会怎样合理安排时间。2.在解决问题的过程中培养思维的灵活性。重点:在动手操作的过程中,形成解决问题的基本策略。难点:三张饼的合理烙法;从多种方案中选择最优方案。教学过程:一、情境引入课件出示:
Teaching content: PEP fourth grader 112 page “mathematical wide angle ”. Teaching objectives: 1. In the specific operation to learn how to arrange a reasonable time. 2. Develop the flexibility of thinking in the process of problem solving. Focus: In the process of hands-on operation, the formation of the basic strategy to solve the problem. Difficulties: three cakes reasonable method of branching; choose the best solution from a variety of programs. Teaching process: First, the situation introduced courseware to produce: