教师需要对教材有全面、系统、深入的解读,具有清晰的数学知识结构,对数学教材进行加工和重组的意识和能力;还要有认识学生,把握学生已有的生活经验和知识背景的能力;以及制订与教材要求贴切、落实在学生最近发展区的教学目标的意识。只有这样才能切实可行地提高课堂教学的有效性。 Teachers need to have a comprehensive, systematic and in-depth interpretation of teaching materials, with a clear mathematical knowledge structure, mathematical materials processing and reorganization of the awareness and ability; but also have to recognize students, students have the experience of life experience and knowledge background ; And developing a sense of urgency in teaching material requirements and implementing the teaching objectives in the student development zones. Only in this way can we effectively improve the effectiveness of classroom teaching.