板书是一门艺术,也是一种有效的教学手段,它能帮助学生直观地领会教材内容,提高教学效率。板书形式多样,诸如:程序式、思路式、图解式、列表式、对比式等等,所谓“贴挂、遮盖”式板书是相对于当堂板书而言的。经过长期观察,笔者发现:大凡教研课,公开课,开课教师都要“玩”一些“花样”,突出表现在板书上,有人把板书抄在一块块的小黑板上;有人抄在精心准备的卡片上,上课以后。不是贴就是挂;还有人事先把板书抄在黑板上,然后用一张硕大的白纸遮盖 Writing a book is an art, but also an effective teaching method, which can help students to intuitively understand the content of teaching materials, improve teaching efficiency. The writing style is diverse, such as programmatic, thoughtful, graphic, tabular, contrasting and so on. The so-called “sticking, covering” type of writing is relative to the writing of a tactile writing. After long-term observation, I found that: In general teaching and research classes, open classes, classes teachers should “play” some “tricks”, prominently displayed on the blackboard, some people copy the blackboard in a block; some copied in carefully prepared On the card, after class. Not posted or hanging; there are people copied to the board in front of the blackboard, and then covered with a huge white paper