《新课程标准》指出,转变学生的学习方式,使学生在活动和现实生活中学习数学、发展数学是当前我国教育改革的基本思路之一。它要求教师在教学中应该根据学生、教学内容、教学环境的具体情境营造一种真实而有吸引力的学习背景,让学生在自然的情境中,在教师的帮助下,在“做”的过 The New Curriculum Standard states that it is one of the basic ideas for current education reform in our country to change the way students learn, enable them to learn mathematics in activities and real life, and develop mathematics. It requires teachers in teaching should be based on the specific circumstances of students, teaching content, teaching environment to create a true and attractive learning background, so that students in the natural context, with the help of teachers, “done” too