开展探究性学习是新课标的要求,与平时的学习相比,探究性学习强调学生的自主性学习,但教师也是参与者,教师的作用是辅助作用,教师可在选题上给予引导、在方法上给予指导、在过程中给予辅导,探究性学习的方法并不是单一的,教师应善于发现新方法,并指导学生运用,笔者在教学实践中发现,单位制也可用来开展探究性学习活动. Exploratory learning is the requirement of the new curriculum standard. Compared with usual learning, inquiry learning emphasizes students’ autonomous learning, but teachers are also participants. The teacher’s role is an auxiliary role. Teachers can give guidance on topics and Methods are given guidance and counseling in the process. The methods of inquiry learning are not unique. Teachers should be good at discovering new methods and instructing students to use them. The author found in teaching practice that the system of units can also be used to carry out exploratory learning activities. .