笔者通过对《铁、铜及其化合物的应用(第二课时)》的多次实践,关注化学课堂教学的有效性,不断反思自己的教学行为,改进教学方法,完善教学策略,最终达成高中化学新课程的三维目标的要求。第一次实践【教学设想】以学科知识为中心,采用问题探究方式,引导学生从Fe2+、Fe3+的性质入手,认真探究Fe2+、Fe3+的相 Through the practice of “the application of iron, copper and its compounds (the second class hour)”, the author pays close attention to the effectiveness of chemistry classroom teaching, continuously reflects on his own teaching behaviors, improves teaching methods and perfects teaching strategies, finally achieves high school chemistry Requirements for the new course’s three-dimensional goals. The first practice [teaching idea] to the subject knowledge as the center, using the question to explore ways to guide students from the nature of Fe2 +, Fe3 + to carefully explore the Fe2 +, Fe3 + phase