An Interdisciplinary Project-Based Laboratory Curriculum in Chemistry Based on Ion Chromatography

基于离子色谱的跨学科项目型化学实验室课程

• 批准号: 9952797
• 负责人: Bert Holmes
• 金额: $ 6.49万
• 依托单位: University of North Carolina at Asheville
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-01-01 至 2002-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9952797&HistoricalAwards=false
• 关键词: Interdisciplinary; Project; Based; Laboratory; Curriculum

Chemistry (12)This project is developing an interdisciplinary, multi-week, project-based, cooperative-learning laboratory program in freshman chemistry and in two analytical chemistry courses. This project combines the disciplines of biology, environmental science and chemistry in investigating the area of phytoremediation or the use of hyperaccumulators, plants capable of accumulating metal ions to reduce levels of metal in soils. Investigations outlined in journals such as Science, J. Environ. Qual., and J. Geochem. Explor. are being adapted for use in this project. An objective is to guide the students away from simply memorizing scientific concepts and toward guided scientific inquiry with an emphasis on interdisciplinary work. Students (a) learn experimental techniques, (b) learn concepts required to understand the problem they choose to investigate, (c) select the "problem" to investigate, (d) design the experimental methods, (e) conduct the data collection, (f) analyze the results and (g) communicate their findings to their peers in a seminar format. By working to solve open-ended problems that are of interest to them and are interdisciplinary in nature, students learn to think critically and become better problem solvers, and the learning process becomes more exciting and relevant. Early exposure to interdisciplinary problem solving encourages students to enthusiastically remain in science and to have successful undergraduate research experiences. While studies have shown that project-based, cooperative learning increases achievement for students of all ability levels from diverse academic backgrounds, this type of learning is shown to be particularly beneficial to female, minority, or handicapped students. The major instrument that is essential for the development of this project-based curriculum is a dual-channel ion chromatography system suitable for determining anions and Group I and 11 cations with electrochemical detection, or transition metal cations and organic compounds with absorption detection.

化学（12）这个项目正在开发一个跨学科的，多周的，基于项目的，合作学习的实验室计划在大一化学和两个分析化学课程。该项目结合了生物学、环境科学和化学等学科，研究植物修复或利用hyperplasticum，即能够积累金属离子以降低土壤中金属含量的植物。 在诸如Science，J. Environ等期刊中概述的研究。质量：和J. Geochem.正在为这个项目进行调整。 一个目标是引导学生远离简单的记忆科学概念，并走向指导科学探究，强调跨学科的工作。学生（a）学习实验技术，（B）学习理解他们选择调查的问题所需的概念，（c）选择要调查的“问题”，（d）设计实验方法，（e）进行数据收集，（f）分析结果，（g）以研讨会的形式将他们的发现传达给同龄人。通过努力解决他们感兴趣的开放式问题，学生学会批判性地思考，成为更好的问题解决者，学习过程变得更加令人兴奋和相关。早期接触跨学科问题解决鼓励学生热情地留在科学和有成功的本科研究经验。虽然研究表明，基于项目的合作学习提高了来自不同学术背景的所有能力水平的学生的成绩，但这种类型的学习对女性，少数民族或残疾学生特别有益。主要的仪器，这是必不可少的这个项目为基础的课程的发展是一个双通道离子色谱系统，适用于确定阴离子和第I和11组阳离子与电化学检测，或过渡金属阳离子和有机化合物与吸收检测。