新课程理念下的课堂教学由“关注知识”转向“关注学生”;教学设计由“给出知识”转向“引导活动”;教学目的由“完成任务”转向“促进学生的发展”。在新课程教改时,发生在课堂中的理念碰撞同样激起我们教师的思考与行动。现结合《直线与圆的位置关系及判定》一课的教学实践, The classroom teaching under the new curriculum concept shifts from “focusing on knowledge” to “focusing on students”; teaching design shifts from “giving knowledge” to “guiding activities”; and teaching aims from “finishing tasks” to “promoting students’ development.” In the new curriculum reform, the collision of ideas that happened in the classroom also inspired our teachers’ thinking and actions. This is combined with the teaching practice of the lesson “Location and Relationship of Lines and Circles”.