《化学元素与人体健康》是义务教育课程标准实验教科书九年级化学下册第十二单元《化学与生活》中一个课题,我以这节课做了一节全市的公开课,并在学生学习方式转变方面尝试了改革,收到了显著的效果。这节课是通过学生自己查阅资料、分小组汇报的 “Chemical elements and human health” is compulsory education curriculum standard textbook of the ninth grade chemistry of the twelfth unit “chemistry and life” in a subject, I took this class to do a section of the city’s open class and student learning Trying reforms in the way of change has received significant results. This lesson is through the students themselves access to information, sub-group report