学得课堂:有效教学的核心使命

• 作 者: 许霞
• 机 构: 上海市朱家角中学,
• 出 处: 新课程(综合版)
• 发表日期: 2014年08期
• 关键词: 核心使命 课堂训练 第一课 课堂导入 媒体展示 导入设计 主动探究 酚酞指示剂 酸碱性 醋酸钠溶液

一、教学过程现以“盐类水解”第一课时的教学为例,探讨如何通过不断改进教学方法,加强课堂训练,提高教学质效。【教学片断一】课的引入师:同学们去过青海湖吗?生:没有。(疑虑:教师为何这样问)师:那里有着壮观的景色,而创造这一奇观的物质之一,便是纯碱。(用媒体展示青海湖“夏天晒盐,冬天捞碱”的壮观景色,引出“纯碱”)生:……(感叹物质世界的美丽与壮观)

First, the teaching process is to “salt hydrolysis ” the first lesson of teaching as an example to explore how to continuously improve teaching methods, strengthen classroom training and improve the quality of teaching. 【Introduction】 teaching a lesson class division: students have been to Qinghai Lake? Health: No. (Doubts: Why did teachers ask?) Teacher: There is spectacular scenery there, and one of the things that created this spectacle is soda ash. (With the media show Qinghai Lake “summer sun salt, winter salinization ” spectacular scenery, leads to “soda ”) students: ... (sighs the beauty of the material world and spectacular)