认识过程分为感性认识和理性认识两个阶段.而课堂板书具有直观、具体、生动、形象的特点,有利于人们形成较深刻的感性认识。下面以化学教学为例,谈谈有关板书的几个问题。一、板书的作用课前板书设计,首先能使教师更系统地掌握教材,进一步明确教学的重点和难点。板书的设计过程,也是教师进一步钻研教材和深入备课的过程。其次,教师以精心设计的板书为纲进行讲授, The cognition process is divided into two stages, perceptual cognition and rational cognition. The board-editing book has the characteristics of being intuitive, concrete, vivid, and image, which is conducive to the formation of deeper perceptual knowledge. The following uses chemistry teaching as an example to talk about several issues relating to board writing. First, the role of board writing before class writing design, first of all to enable teachers to more systematically grasp the teaching materials, and further clarify the focus and difficulty of teaching. The design process of the board is also a process in which teachers further study materials and prepare lessons in depth. Second, teachers are taught on a well-designed board.