论文部分内容阅读
在实验室里学生做了中考实验技能考试的几个小实验,有“蛋白质的性质”“溶质溶解时的温度变化与溶液的形成”“常见的酸碱指示剂及溶液pH的测定”。课后,我写下一篇教育随笔,反思自己的教学行为,有所收获和触动。学生梁云燕在做完了鸡蛋清和硫酸铜溶液反应的实验后提出来,想要一个铁钉,我给了她,很好奇她想做什么,她说想试试铁和反应后的硫酸铜还能不能反应。(她想验证硫酸铜发生了变化,还是否具备原有的性质,已经初步有了化学反应后验证反应物是否有剩余的思想)。
In the laboratory, students did a few experiments in the examination skills of senior high school entrance examinations, including “the nature of the protein”, “temperature change during solute dissolution and solution formation”, “common pH indicator and solution pH Determination of ”. After class, I wrote an essay on education, to reflect on my teaching behavior, and to gain and touch. Student Liang Yunyan done egg white and copper sulfate solution reaction experiments put forward, want an iron nails, I gave her, curious what she wanted to do, she said would like to try iron and copper sulfate after the reaction can not reaction. (She wanted to verify that copper sulphate has changed, and whether it has the original properties, has been the initial chemical reaction to verify whether the remaining reactants idea).