论文部分内容阅读
化学新课程标准中“活动与探究建议”回答了“内容标准”中设置的学生应怎样学、如何学,并提供了学习途径与手段。新教材中没有单独设置学生实验,但在教材内容中的[实验]及[科学探究]中渗透了很多实验内容,这样会给教师更大的空间,灵活处理教学内容,达到最佳教学效果。化学反应有很多是在溶液中进行的,在工业生产和科学研究中要定量研究在溶液中发生的化学反应,通常用物质的量溶液来计算比较方便,在农业上需要配制一定浓度
In the new chemistry curriculum standard, “Activities and Inquiry Advice” answers the questions that students in “Content Standards” should learn, how to learn, and provide learning ways and means. There is no separate experiment set up in the new teaching materials, but many experimental contents have been infiltrated in [experimental] and [scientific inquiry] of teaching materials, which will give teachers more space, flexible teaching content and the best teaching effect. Many chemical reactions are carried out in solution. In industrial production and scientific research, it is necessary to quantitatively study the chemical reactions that occur in the solution. Usually, it is convenient to calculate the amount of the substance in solution. In agriculture, it is necessary to formulate a certain concentration