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未来的竞争不仅仅是知识的竞争,更是学习能力的竞争.如何真正培养学生较强的学习能力?如何落实新课程理念下的教学目标?实践告诉我们,实施问题解决策略是有效途径之一.一、积累数学活动经验,掌握问题解决的思路案例1无理数概念的建立过程无理数对初中学生来说是个难点之一,在引入这个概念前,教师应设法让学生感觉到无理数是确实存在的数.这里,笔者以计算边长为突破口,用下面的问题引导学生思考:
The competition in the future is not only the competition of knowledge, but also the competition of learning ability.How to cultivate students’ strong learning ability? How to implement the teaching objectives under the new curriculum concept? Practice tells us that the implementation of problem solving strategy is one of the effective ways First, the accumulation of experience in mathematical activities, to grasp the problem solving ideas Case 1 of the concept of irrational number of irrational number of junior high school students is a difficult point in the introduction of this concept, teachers should try to make students feel that irrational number is the number of existence Here, I calculate the length as a breakthrough, with the following questions to guide students to think: