摘要
气体的热胀冷缩是小学科学中的重要知识点,但教材中设计的实验只能进行定性观察,无法实现定量探究。该教具利用自制液柱瓶呈现气体体积变化,借助数字化传感器、数据采集器等设备,采集并处理数据,具有安全高效、效果明显、数据严谨等特点,达到了化微观为直观,化抽象为具象的实验效果。
The thermal expansion and contraction of gas is an important knowledge point in primary school science,but the experiments designed in the textbook can only be qualitative observation,and cannot realize quantitative exploration.The teaching aid uses a self-made liquid column bottle to show the change of gas volume,and collects and processes data with the help of digital sensors,data collectors and other equipment.It has the characteristics of safety and efficiency,obvious effect and rigorous data,and achieves the experimental effect of turning microcosm into intuition and abstraction into concrete.
作者
刘蕾
LIU Lei(Jucheng Primary School,Zhongshan,Guangdong 528415)
出处
《科教导刊》
2021年第36期139-141,共3页
The Guide Of Science & Education
基金
广东省教育科学规划2021年度“中小学教师教育科研能力提升计划”项目“信息技术与中小学实验教学融合创新实践研究”课题成果之一,编号:2021YQJK138
关键词
创新教具
气体热胀冷缩
数字化传感器
定量探究
innovative teaching aids
gas thermal expansion and cold contraction
digital sensor
quantitative inquiry
