Computerized Chemistry Laboratory as an Extension of the Hands-on Experience

计算机化化学实验室作为实践经验的延伸

• 批准号: 9751108
• 负责人: Laura Precedo-Choudhury
• 金额: $ 0.85万
• 依托单位: Broward College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-08-01 至 1999-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9751108&HistoricalAwards=false
• 关键词: Computerized; Chemistry; Laboratory; Extension; Hands

Many community college students have weak backgrounds in the sciences and therefore have a difficult time grasping abstract concepts in chemistry. The purpose of this project is to make chemistry less intimidating and more approachable by introducing a medium into the Laboratory that student are familiar with - computers. The hands-on experience of laboratories has traditionally been an invaluable aid in clarifying concepts presented in class. This project will enhance this important aspect of chemistry by allowing experimental data be recorded directly to a computer hard drive via a computer interface to the laboratory instrument. The analysis and subsequent graphing can thus be accomplished quickly by the computer so that students can observe graphically the results of their experiments. Computer simulations further enhance the hands-on experience by allowing student to change the initial reaction conditions and quickly observe the effect of these changes as displayed graphically. This combination of real and virtual laboratories accommodates different learning styles and increases the students' understanding of chemical concepts. This in turn stimulates their imaginations and entices further exploration of chemistry. The project impacts nearly 1,800 students during the two year period of the grant. Improved understanding of chemical concepts should lead to increased student retention and success rates. The ultimate goal of the project is to create a science literate students who can understand the world around them. The results of this project will be disseminated through the electronic media such as LabNet as well as through professional meetings and articles in the literature. *

许多社区学院的学生科学背景薄弱，因此很难掌握化学中的抽象概念。 该项目的目的是通过在实验室引入学生熟悉的媒介——计算机，让化学不再那么令人生畏，更平易近人。 传统上，实验室的实践经验对于澄清课堂上提出的概念具有非常宝贵的帮助。 该项目将通过实验室仪器的计算机接口将实验数据直接记录到计算机硬盘上，从而增强化学的这一重要方面。 因此，分析和随后的绘图可以通过计算机快速完成，以便学生可以以图形方式观察实验结果。 计算机模拟允许学生改变初始反应条件并快速观察以图形方式显示的这些变化的效果，进一步增强了实践经验。 这种真实和虚拟实验室的结合适应了不同的学习方式，并增加了学生对化学概念的理解。 这反过来又激发了他们的想象力并吸引对化学的进一步探索。 该项目在两年的资助期内影响了近 1,800 名学生。 提高对化学概念的理解应该会提高学生的保留率和成功率。 该项目的最终目标是培养具有科学素养的学生，能够了解周围的世界。 该项目的成果将通过 LabNet 等电子媒体以及专业会议和文献文章进行传播。 *