近日,我有幸参加了由河源市教育局教研室组织的2012年普通高中课堂教学专题研讨活动,我和我校部分高三数学老师听了河源某中学高三级两位骨干教师的两节示范课.两位老师扎实的专业知识,精湛的教学手段使我受益匪浅,收获良多.其中一位老师上的是《三角函数的诱导公式》的复习课,以下是这位老师在上课过程中的一段教学片断,记录如 Recently, I was fortunate to participated in the 2012 ordinary high school classroom teaching seminar organized by the Heyuan City Department of Education Office. Some high school math teachers in our school listened to two demonstration classes of two high-level and two-level key teachers in a high school in Heyuan. Two teachers of solid professional knowledge and superb teaching methods so that I benefit a lot, a lot of gains. One of the teachers on the “trigonometric function of the induction formula,” the review class, the following is the teacher in the class process A piece of teaching, record as