集合既是初高中数学衔接的关键点,又对整个高中学习起着举足轻重的作用.因此,将集合这一高中数学的开篇内容学好,就显得尤为重要.笔者以为,不仅要从学生已有的认知水平出发,充分利用学生的生活经验,而且要精心创设一个合适的情境.这一情境,首先能吸引学生深入其中,产生浓厚的学习兴趣,又能让学生在一些知识的难点处自主发现问题,进而产生解决问题的需要,从而轻松化解并突破难点.下面是笔者为集合单元创设的生活情境的一些 Collection is not only the key point of the convergence of mathematics in the junior high school, but also plays a decisive role in the overall high school learning. Therefore, it is particularly important to integrate the opening content of high school mathematics. The author believes that not only must students recognize Starting from the level of knowledge, making full use of the students’ life experience, and carefully creating a suitable situation. This situation can first of all attract students to go deeper into it, generate a strong interest in learning, and enable students to find problems independently in some difficult areas of knowledge. , and then have the need to solve the problem, so as to easily resolve and break through the difficulties. Here are some of the life situation created by the author for the collection unit