1)Previewing before the experiment course
All students must carry out experiment previews seriously.While classes are limited in time,each experiment has too many tasks(understanding the principle,mastering methodologies and tools,measuring data,etc.)to deal with.Therefore,students are not allowed to do experiments without adequate previews.Here are some requirements for previews:
(1)First,students are asked to read the textbook.All students must understand the basic principles as well as methods used in experiments after carefully reading through the textbook.They should pay much attention to the key points and try to solve the questions from the textbook,and read the instructions on how to handle the instruments.(https://www.daowen.com)
(2)Second,they need to write the preview report.The preview report contains the name and purpose of the experiment,the principle,the content and steps of it,and the data recording table.The teacher will check the preview report before each experimental class;therefore,students who did not complete the preview report will not be allowed to conduct an experiment.