在生物学教学中,实物、标本、模型和掛图等直观教具的运用固然十分重要,但是,教师在讲课中,如果能在运用生动、具体、形象、易懂的语言的同时,恰当地灵活地运用简易的黑板画,就能在提高学生的学习兴趣,集中学生的注意力以及帮助学生理解知识和加强记忆等方面收到更为显著的效果。这里所说的黑板画是教师在课堂上在讲课的过程中,在黑板上边讲边画的简易画图。一.黑板画的特点首先由于黑板画是在边讲边画过程中逐渐形成的,这就能反映出生物体的生长、发育等活动过程以及 In the teaching of biology, the use of visual aids, such as objects, specimens, models and wall charts, is of course very important. However, teachers should be able to use the vivid, concrete, vivid and understandable language appropriately while lecturing By using simple blackboard drawing, you can receive even more remarkable results in improving students ’interest in learning, concentrating students’ attention, and helping students to understand and strengthen their memory. The blackboard drawing here is a simple drawing of a teacher who talks about painting on the blackboard during the lecture in the classroom. First, the characteristics of blackboard painting First of all, blackboard painting is the process of talking about the edge of the gradual formation of painting, which can reflect the organism’s growth, development and other activities as well as