小学科学的学习倡导从儿童身边的自然事物开始学习活动,以形成对自然进行探究的态度、技能和获取关于自然知识的学习方式。为了更好地落实这一指导思想,根据“小苏打与白醋的变化”这节课的特点我设计了一堂以师生互动、学生交流并互为合作为模式的课堂教学。分别准备了小苏打、白醋、蜡烛、打火机、棉签等物品。为充分利用学生的好奇心理,上课时,我利用“瓶吹气球”的趣味实验,激发学生提出问题,激起学生学习知识的兴趣,为下面 Primary science learning advocates learning activities from children’s natural things to form attitudes, skills and access to learning about natural knowledge. In order to better implement this guiding principle, I designed a classroom teaching mode based on the interaction between teachers and students, student exchange and mutual cooperation based on the characteristics of the lesson “Changes in Baking Soda and White Vinegar.” Prepared respectively baking soda, white vinegar, candles, lighters, cotton swabs and other items. In order to make full use of the curiosity of students, in class, I use the fun experiment “Bottle blowing balloon” to inspire students to raise questions and arouse students’ interest in learning knowledge for the following