大概念统摄下的项目化学习——海洋资源的综合利用与制盐

Project-Based Learning to Promote the Construction of Big Ideas:Comprehensive Utilization of Marine Resources and Salt Production

以“海洋资源的综合利用与制盐”为项目教学主题,拆解“自制独特风味盐”和“海洋资源综合利用设计”2个子任务,在学科实践活动中完成初中化学“饱和溶液”“溶解度”等核心概念的学习,形成物质分离提纯和资源综合利用的思维模型,逐步建构“化学与可持续发展”学科大概念,感受科学、技术、社会、环境间的依存关系,提升对化学学科价值的认识水平。

With the theme of"comprehensive utilization of marine resources and salt production",the project is divided into 2 sub-tasks of"homemade unique flavored salt"and"design of comprehensive utilization of marine resources".Through the disciplinary practice activities,students complete the study of core concepts such as"saturated solution"and"solubility",form a thinking model for the separation and purification of substances and comprehensive utilization of resources,gradually construct the big idea of"chemistry and sustainable development",feel the interdependence between science,technology,society and environment,and raise awareness of the value of chemistry.