Online Chemistry: Problems, Concepts and Contexts

在线化学：问题、概念和背景

• 批准号: 1123355
• 负责人: David Yaron
• 金额: $ 44.86万
• 依托单位: Carnegie-Mellon University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-08-01 至 2016-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1123355&HistoricalAwards=false
• 关键词: Online; Chemistry; Problems; Concepts; Contexts

Chemistry (12) The "Online Chemistry: Problems, Concepts and Contexts" project is creating a set of web-based instructional materials covering topics in introductory chemistry that are difficult to teach and learn, including stoichiometry, thermodynamics, kinetics, equilibrium, acid-base chemistry, and solubility. Students currently spend a substantial amount of instructional time solving quantitative problems on these topics. The online materials help to maximize the learning benefits of this time by better coupling the problem solving to chemical concepts and to the use of these concepts in modern science. The instructional modules are grounded in both the broader instructional principles of learning science and more specific results obtained from observing students solving chemistry problems. In particular, the online materials implement an instructional approach to equilibrium that initial results found to more than double student performance on difficult problems and that lays a powerful conceptual framework on which acid-base and other related topics build. The molecular science covered in these materials is becoming an increasingly important aspect of science and engineering. By providing students with robust knowledge of chemical concepts, the modules prepare students for careers across multiple STEM disciplines. The materials are broadly disseminated through the web, conferences and publications. Because the materials are developed in a manner that allows for easy modifications, even for highly interactive components, both the original authors and the community as a whole can use the information gleaned on how students learn to iteratively improve the materials.

化学（12）“在线化学：问题，概念和背景”项目正在创建一套基于网络的教学材料，涵盖了难以教和学的入门化学主题，包括化学计量学，热力学，动力学，平衡，酸碱化学和溶解度。学生目前花费大量的教学时间解决这些问题的定量问题。在线材料有助于通过更好地将问题解决与化学概念以及这些概念在现代科学中的使用结合起来，最大限度地发挥这段时间的学习优势。教学模块是在学习科学的更广泛的教学原则和更具体的结果，从观察学生解决化学问题。特别是，在线材料实施了一种教学方法，以平衡，初步结果发现，超过一倍的学生表现在困难的问题，奠定了一个强大的概念框架，酸碱和其他相关主题的基础上。这些材料所涵盖的分子科学正在成为科学和工程的一个越来越重要的方面。通过为学生提供强大的化学概念知识，这些模块为学生在多个STEM学科的职业生涯做好准备。这些材料通过网络、会议和出版物广泛传播。因为这些材料是以一种允许轻松修改的方式开发的，即使是高度互动的组件，原作者和整个社区都可以使用收集到的关于学生如何学习迭代改进材料的信息。