论文部分内容阅读
由于燃烧的实验不但有毒、危险,而且操作麻烦,不便于教师课上演示,所以对“燃烧的条件”的实验改进.改进后的实验,注意从学生身边的经验出发,注意运用学生身边的材料,具有安全环保、节约药品、简便易行等优点,更大的亮点是把演示实验改成学生实验或家庭小实验,让学生有更多的机会主动地体验科学探究的过程,有利于增强学生学习化学的兴趣和学好化学的信心,提高学生的化学素养.
As the combustion experiment is not only toxic and dangerous, but also troublesome and inconvenient for teachers to demonstrate in class, the experimental improvement on “burning conditions” is improved. The improved experiment should be based on the experience of the students and pay attention to using the students Of the material, with safety and environmental protection, drug-saving, easy and so on, the greater the bright spot is the demonstration experiment into a student experiment or home experiment, so that students have more opportunities to take the initiative to experience the process of scientific inquiry is conducive to Enhance students ’interest in learning chemistry and learn chemistry confidence, improve students’ chemical literacy.