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新课标指出:学生的学习内容应当是现实的、有意义的、富有挑战性的。因此,教师在教学中要注重教学内容的现实性和应用性,要向学生的生活实际开放,向学生的生活经验开放,对教材内容要进行必要的取舍和调整,要把那些与学生生活及现代生产、科技密切相关的问题情境和学生喜闻乐见的鲜活材料引入数学课堂教学中,赋予现行教材内容新的活力。
The new curriculum standard points out: Students’ learning content should be realistic, meaningful and challenging. Therefore, in teaching, teachers should pay attention to the reality and applicability of teaching content. They should actually open to students ’life, open to students’ life experiences, make the necessary choices and adjustments to the contents of textbooks. Modern production, science and technology are closely related to the situation and fresh students love the introduction of fresh materials into the classroom teaching, given the content of the current teaching of new vitality.