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黑板是教师在课堂上向学生传授知识的最基本的教学用具之一,教师可以通过它写出或画出非言语所能理解的或言语上难以理解的东西,并可通过它明确地有条理地书出“讲授重点,以帮助学生理解与巩固知识。所以教师在一节课里应该写些什么?怎样写?什么时候写?都需要在备课时作周密的考虑,并应在制订课时计划时列为重要项目之一。教师在新课中,话说的不清楚、不技术或说错了,会造成学生难以理解的困难或形成错误的概念。而板书如写的不清楚、不技术或写乱写错了,也同样会给学生在理解问题上带来困难或形成错误的概念。甚至写错了一句话或画错了一个东西比讲错了一句话留给学生的印象还要深。因为学生坐在课堂上,两眼是紧紧
The blackboard is one of the most basic teaching tools for teachers to impart knowledge to students in the classroom through which teachers can write or draw non-verbal understandings or speech comprehensible things that can be clearly organized So as to help students understand and consolidate their knowledge, what should teachers write in a lesson, how to write it, when to write it, and when making the lesson needs careful consideration, and when preparing the lesson plan Is listed as one of the important items in the new class teachers, the words are not clear, not technical or wrong, it will cause students difficult to understand or form the wrong concept of error .While the blackboard writing such as unclear, not technical or Wrong writing can also give students a difficult or erroneous understanding of the problem of understanding, or even write the wrong word or paint the wrong one more than the wrong word left to the student. Because the students are sitting in the classroom, their eyes are tight