教材上介绍了简易的制氢气的装置,但为了培养学生自行设计实验的能力,我在学生做了书上的实验后,为学生又提供了一些能够制氢气的器材和药品,学生设计了４种方法（见下图）制取氢气,收到了较好的效果。学生制氢气点子多$安化县东坪中学@张纯辉 The teaching materials introduced a simple device for hydrogen production. However, in order to develop students’ ability to design experiments on their own, I provided students with some equipment and medicines capable of hydrogen production after the students made experiments on the books. The students designed 4 This method (see the figure below) produced hydrogen and received good results. Student Hydrogen Ideas $ Anhua County Dongping Middle School @ Zhang Chunhui