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初中生物教学中利用黑板画这一直观性手段很重要。初中生物课主要体系是从生态结构及生理诸方面进行研究的,因此,使用黑板画,可以使教师在讲授同时,让学生及时看到所研究的对象的形态、结构及生理活动,使学生迅速正确地掌握知识,弥补其他直观教具的不足,同时又能促进其他直观教具的运用。一、提高学生兴趣,集中学生注意力在课堂教学中边进边画,并用不同彩色粉笔处理,使学生可观察到教师所画的每一个细节,使学生由无意注意转变为有意注意,并对学生理解知识,无意识记起到良好的效果。例如,在讲授蝗虫一节中时,首先让学生观察标本和模型;其次,边讲边在
It is very important to use blackboard to draw the visual method in junior high school biology teaching. The main system of junior high school biology class is from ecological structure and physiology research, therefore, the use of blackboard painting, teachers can teach at the same time, so that students can see the object of study in time the shape, structure and physical activity so that students Quickly and correctly grasp the knowledge to make up for the deficiencies of other visual aids, but also to promote the use of other visual aids. First, to enhance student interest, focus on student attention In the classroom teaching into the edge painting, and with different color chalk processing, so that students can observe every detail of the teacher’s drawing, so that students from unintentional attention to the intention of attention, and Students understand knowledge, unconsciously remember good effect. For example, in the section on locust training, students are first allowed to observe specimens and models. Second,