基于STEM理念培养证据推理与模型认知素养的教学——厨宝水垢的生长分析

Cultivation of Evidence Reasoning and Model Cognition Core Competence Based on STEM Education:Analysis the Growth of Limescale in Kitchen Heater

以“厨宝水垢的生长”现象为分析对象,基于STEM方法进行了培养“证据推理与模型认知”素养的教学尝试,将科学、技术、工程和数学等多学科知识点与化学知识融合在一起,增进了学生对“证据收集”“分析推理”“模型建立与认知”等的理解,激发了学生的学习兴趣。从教学效果看,有必要分课前、课堂和课后等3个阶段对教学内容进行优化与调整,将STEM全过程导入,能更有效地帮助学生树立科学理性思维、提高应用拓展能力和增强证据收集与应用意识。

Taking the phenomenon of"the growth of limescale in kitchen heater"as the analysis object,an attempt was made to cultivate the literacy teaching of"evidence reasoning and model cognition"based on STEM education.It aims to improve students'understanding of"evidence collection""analytical reasoning""model establishment and cognition",and stimulates students'interest in learning by integrating multi-disciplinary knowledge points such as science,technology,engineering and mathematics with chemical knowledge.From the perspective of teaching effect,it is necessary to optimize and adjust the teaching content in pre-class,in class and class-out,and STEM should be introduced in the whole process,in order to more effectively help students to build scientific and rational thinking,application expansion ability and evidence collection and application consciousness.