数学作为一种有明确目的性的认知活动,其有效性是教育工作者所共同追求的,有效教学是教师在达成教学目标和满足学生发展需要方面都很成功的教学行为,它是教学的社会价值和个体价值的双重体现。新课程标准的数学课程教学,其基本出发点是促进学生全面持续和谐地发展。它不仅要考虑数学自身的特点,更应该遵循学生学习 As a kind of purposeful cognitive activity, mathematics is commonly pursued by educators. Effective teaching is a teaching activity that teachers are successful in achieving the goals of teaching and meeting students’ development needs. It is teaching Social values ​​and individual values ​​of the dual embodiment. The basic starting point of mathematics curriculum teaching of the new curriculum standard is to promote the students’ continuous and harmonious development. It should not only consider the characteristics of mathematics itself, but also should follow the student learning