笔者从事小学科学教学工作已有几年了,在教学过程中,有很多思考,有很多收获,今就义务教育课程标准实验教科书《科学》(青岛出版社·四年级下册)第一单元中的几个实验说一说自己的做法,与同行共享。《科学》课本第一单元第一课中《热传导》实验教具,教学参考中提到用猪油或凡士林将火柴粘在金属棒上。 I have been engaged in primary school science teaching for several years, in the teaching process, there are many thinking, there are many gains, compulsory education curriculum standard experiment textbook “Science” (Qingdao press · fourth grade second volume) the first unit Several experiments to talk about their own practices, to share with their peers. In the first lesson of Science, Unit 1, “Heat Conduction”, a reference to a teaching aid involves lard or petrolatum sticking a stick to a metal stick.