相异构想是科学概念获得的主要障碍之一,转变相异构想是概念教学的关键。阐述相异构想的特点及影响转变的因素,提出转变相异构想的策略。 Discrepancies are one of the major obstacles to the acquisition of scientific concepts. The key to conceptual teaching is changing conceptions of dissent. Describe the characteristics of the different ideas and the factors that affect the change, put forward the strategy of changing the vision.