1.针对学科特点,激发学习兴趣。由于农村中学经济比较困难,实验室简陋,化学仪器、药品残缺不全,很难满足教材中开设的实验。在教学中要对一些复杂的实验进行改进,用不同的实验方法,达到共同的实验目的。同时充分调动学生的学习的积极性,找来生活中的替代品进行演示实验或分组实验,使学生感到化学 1 for the characteristics of the discipline, stimulate interest in learning. Due to the rural middle school economy is more difficult, crude laboratory, chemical instruments, incomplete pharmaceuticals, it is difficult to meet the experimental materials set up. In teaching, we must improve some complicated experiments and use different experimental methods to achieve common experimental purposes. At the same time fully mobilize the enthusiasm of students to learn to find substitutes in life for demonstration experiments or group experiments, so that students feel chemical