课堂教学是教学的中心环节,教学效率提高的关键在于课堂的高效率,而实现高效课堂就必须要以学生为中心,以学生为主体,围绕学生的需求度、认识度、理解度展开,通过层层推进螺旋上升实现学生自我认知能力的提高。 Classroom teaching is the key part of teaching. The key to improve the teaching efficiency lies in the high efficiency of the classroom. To achieve efficient classroom, we must take students as the center, students as the main body, focus on students’ needs, awareness and understanding Layers promote the spiral rise to improve students’ self-cognitive ability.