数学概念源于客观世界,正确反映了客观世界在数与形方面的规律性。要掌握正确、清晰、完整的数学概念,既依赖于学生的数学认知结构状况,又依赖于教师的教学措施。“深浅有度”的概念教学,能提高概念教学的效率,培养学生的学习兴趣,提高学生的数学素养,又为他们将来的数学学习打下坚实的基础。 Mathematical concepts originate from the objective world and correctly reflect the laws of numbers and forms of the objective world. To grasp the correct, clear and complete mathematical concepts depends not only on the status of students ’cognitive structure of mathematics, but also on the teachers’ teaching methods. “Shallow depth ” concept teaching, can improve the efficiency of concept teaching, develop students ’interest in learning, improve students’ mathematical quality, and lay a solid foundation for their future maths learning.