元素及化合物知识是整个化学知识的重要组成部分,是其它知识构成的基础,也是林业专业知识联系最密切的一部分内容。下面就提高元素及化合物知识的教学质量谈谈自己的实践及体会。一、阅读与思考相结合有关元素及化合物知识的内容学生一般都能看得懂,通过阅读使学生对所学知识有一个初步的了解。阅读前,教师可根据教学内容和教学目的,拟定一定数量的思考题(此思考题由教师在备课时拟定,题型既有基本知识类型,又有综合知识类型)。思考题应在学生阅读前布置,并同时讲清阅读的目的和要求,以及如何阅读与思考。例如在讲授“钠和钾”一节时,可拟定如下思考 Knowledge of elements and compounds is an important part of the entire chemical knowledge, constitutes the basis of other knowledge, and is also the most relevant part of forestry knowledge. Here to improve the quality of teaching elements and compounds to talk about their own practice and experience. First, the combination of reading and thinking of the elements and compounds Knowledge of the content Students generally can understand, through reading so that students have a preliminary understanding of what they have learned. Before reading, teachers can formulate a certain number of questions based on the teaching content and teaching purposes (this question is formulated by the teacher during the lesson preparation. The questions are both the basic knowledge types and the comprehensive knowledge types). Questions should be arranged before the students read, and at the same time to clarify the purpose and requirements of reading, and how to read and think. For example, in teaching “Sodium and potassium” section, the following can be drawn up