论文部分内容阅读
为了改进人教版化学九年级上册“燃烧的条件”实验的不足,可利用学生熟悉的木炭及石子设计一则探究物质燃烧条件实验。该实验以控制变量方式促使木炭呈现燃烧、熄灭、再燃烧、燃尽熄灭等系列现象,学生借此可掌握燃烧条件和灭火原理,有利于提高实验教学质量和课堂效益。
In order to improve the PEPC grade nine “burning conditions” experiment deficiencies, the students can use the familiar charcoal and stone design a study of material combustion conditions experiment. In this experiment, a series of phenomena such as burning, extinguishing, re-burning and burning-out of charcoal are controlled by the way of controlling variables. Students can master the combustion conditions and fire extinguishing principles in this way, which is beneficial to improve the quality of experimental teaching and classroom benefits.