Teaching Students to Think as Analytical Chemists by Developing a Laboratory Course in Method Development

通过开发方法开发实验室课程，教导学生像分析化学家一样思考

• 批准号: 0125835
• 负责人: David Harvey
• 金额: $ 3.91万
• 依托单位: DePauw University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-03-01 至 2004-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0125835&HistoricalAwards=false
• 关键词: Teaching; Students; Think; Analytical; Chemists

Chemistry (12)We are using an automated atomic absorption spectrometer, an automated HPLC, and equipment for microwave digestions and extractions to enhance students learning in analytical chemistry and applying the knowledge gained to other chemistry courses in the physical and biological sciences and to research projects. We are adapting a number of problem-based laboratories from literature such as the environmental monitoring of urban air or trout streams and the analysis of a clinical control serum. These lab projects make use of "real" samples (serum, air, water) and require students to design, optimize, and validate a method(s) to do the work in their project. Two broad pedagogical objectives of this project are- to provide instruction in modern analytical chemistry through changes to the analytical curriculum and the acquisition of modern analytical instrumentation, and to create an educational environment in which students solve problems by learning to think as analytical chemists. These objectives are accomplished by: (1) creating a new curriculum that better represents the skills required in analytical chemistry; (2) providing students with a problem-based laboratory experience; (3) creating a student-centered lab emphasizing cooperative learning; (4) training students in the use of modern, automated instrumentation; and (5) linking the analytical lab experience to a student's interests. In the Method Development course, an upper-level laboratory course required of chemistry majors, the students work as part of a research team to design, optimize and validate an analytical method for an analyte in a complex, real matrix. Each student assumes responsibility for one or more aspects of the group's project. A key feature of this project is the use of the "jigsaw" concept in which students from different groups, but with similar responsibilities, periodically meet to share information and discuss solutions to common problems.

化学（12）我们正在使用自动原子吸收光谱仪，自动高效液相色谱仪和微波数字化和提取设备，以提高学生在分析化学方面的学习，并将所获得的知识应用于物理和生物科学的其他化学课程以及研究项目。我们正在从文献中改编一些基于问题的实验室，如城市空气或鳟鱼流的环境监测和临床对照血清的分析。这些实验项目利用“真实的”样本（血清、空气、水），要求学生设计、优化和验证一种方法来完成项目中的工作。该项目的两个广泛的教学目标是-通过改变分析课程和获取现代分析仪器提供现代分析化学的教学，并创造一个教育环境，让学生通过学习分析化学家的思维来解决问题。这些目标是通过以下方式实现的：（1）创建一个新的课程，更好地代表分析化学所需的技能;（2）为学生提供基于问题的实验室经验;（3）创建一个以学生为中心的实验室，强调合作学习;（4）培训学生使用现代化的自动化仪器;（5）将分析实验室经验与学生的兴趣联系起来。在方法开发过程中，化学专业要求的高级实验室课程，学生作为研究团队的一部分，设计，优化和验证复杂，真实的基质中分析物的分析方法。每个学生承担小组项目的一个或多个方面的责任。该项目的一个主要特点是使用“拼图”概念，即来自不同群体但职责相似的学生定期聚会，分享信息，讨论共同问题的解决办法。