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板书是最常用的教学手段之一。在课堂上学生接受知识信息的渠道基本有两个 ,一是视觉 ,二是听觉。板书是使学生通过视觉而获得知识信息的。在学生接受信息的两个渠道中 ,通过视觉获得信息的记忆时间 ,比从听觉获得信息的时间要长几倍。板书便于学生巩固知识 ,因而是提高教学效
Writing a book is one of the most commonly used teaching methods. Students in the classroom to receive knowledge of the basic channels of information there are two, one is the visual, the second is auditory. Blackboard is to enable students to obtain visual information through the visual information. Of the two channels in which students receive information, the time to visualize the information is several times greater than the time it takes to obtain information from the hearing. The blackboard helps students to consolidate their knowledge and thus enhance their teaching effectiveness