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假设是解决实际问题的常用策略之一,对学生分析实际问题的数量关系,积累解决问题的经验,感悟一些基本的数学基本方法,提高分析和解决问题的能力,都有着十分重要的意义。通过本课教学,可以使学生初步学会根据实际问题的条件和问题,提出合理的假设,达到化难为易的目的,初步形成解决问题的策略意识,提高分析和解决问题的能力。在策略类问题教学中,学生在本单元学习中,都能尝试着运用所学策略解决问题。可是一旦脱离了具体的学习环境,策略对于学生来说,仅仅是
Hypothesis is one of the common strategies to solve practical problems. It is very important for students to analyze the quantitative relationship of practical problems, accumulate experience in problem solving, understand some basic mathematical methods and improve their ability to analyze and solve problems. Through the teaching of this course, students can learn how to make reasonable assumptions based on the conditions and problems of practical problems, and achieve the goal of making accidents difficult and easy, initially forming a strategic awareness to solve problems and improving their ability to analyze and solve problems. In the teaching of strategy problems, students in this unit can try to use the strategies learned to solve the problem. But once out of the concrete learning environment, the strategy is just for the students