近日,笔者有幸作为评委参加了某市级小学科学微型教学竞赛活动,执教课题为苏教版小学科学4年级上册第1单元《我们周围的空气》第3课“空气中有什么”。从大多数参赛教师的表现可以看出,小学科学教师的实验素养、实验教学能力亟需加强。1教学内容分析“空气中有什么”一课是在学生已经认识空气的物理性质基础上,指导学生认识空气的组成,并为学生理解空气是生命的要素和认识空气的污染提供必要的知识基础。这是一个典型的实验探 Recently, I was fortunate as a jury participated in a city-level primary school science mini teaching competitions, coaching subject for the Sujiao Primary School Science Year 4 Volume 1, “the air around us” Lesson 3 “What’s in the air ”. It can be seen from the performance of most of the participating teachers that the experimental quality of primary science teachers and the ability of experimental teaching urgently need to be strengthened. 1 teaching content analysis “What is the air ” lesson is based on the students already know the physical properties of air, to guide students to understand the composition of the air, and for students to understand the air is a vital element of life and understanding of air pollution provide the necessary basic knowledge. This is a typical experimental exploration