<h3>复习旧知</h3> <h3>预习课本</h3> <h3><a href="http://db.jndjg.cn/video.aspx?menutype=84&subtype=107&thirdtype=109&id=4402" target="_blank" class="link"><span class="iconfont icon-iconfontlink"> </span>请观看视频</a><br></h3> <h3>学习新知</h3> <h3>课堂小结</h3> <h3>巩固练习</h3>