Enhancing Student Chemistry Learning by Changing Instructionand Assessment Practices: A Proposal for a Computer Laboratory

通过改变教学和评估实践来加强学生化学学习：关于计算机实验室的提案

• 批准号: 9651124
• 负责人: Craig Bowen
• 金额: $ 4.08万
• 依托单位: University of Southern Mississippi
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-07-01 至 1998-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9651124&HistoricalAwards=false
• 关键词: Enhancing; Student; Chemistry; Learning; Changing

A computer laboratory is being developed for interactive pre- and post-chemistry laboratory assessment and instruction of students in general and organic chemistry, and to provide computer laboratory teaching experiences for preservice high school chemistry teachers. The computer laboratory enables teachers to reinforce learning by showing students how "wet" laboratory experiences can be integrated with lecture ideas in terms of concepts being covered and laboratory skills being practiced. Quicktime movies allow presentation of, and questioning about, reactions that are too dangerous to have students do in the laboratory. Students view, and are quizzed on, Quicktime video clips on safe use of laboratory equipment. For prelaboratory instruction, the computer environment provides an opportunity for students to take part in interactive questioning to determine whether they have the knowledge needed to complete the laboratory successfully. The "wet" laboratory environment is an important part of chemistry that is not to be replaced by computer facilities. Students are using calculator interfaced laboratory methods of acquiring and analyzing data from "wet" lab experiments as a part of this project. The postlaboratory computer lab can be a place for students to be assessed on their learning of the laboratory material, to extend their learning, and to be guided by further work if deficiencies are revealed. The facility also provides preservice teachers an avenue for developing and using instructional and assessment materials to facilitate chemistry learning. The 2-year implementation period includes both formative and summative evaluations that enhance instruction and quizzing practices used in the project. Materials from the project are being made available to others through computers (World Wide Web), workshops, and print.

正在开发一个计算机实验室，用于对普通化学和有机化学学生进行交互式的化学实验室前和后评估和指导，并为普通高中化学教师提供计算机实验室教学经验。计算机实验室使教师能够通过向学生展示如何将“湿”实验室经验与讲座理念结合起来，从而加强学习，这些概念涵盖了实验室技能。Quicktime电影允许学生在实验室里演示和提问那些太危险的反应。学生观看并接受关于安全使用实验室设备的Quicktime视频剪辑的测验。对于预实验室教学，计算机环境提供了一个机会，让学生参加互动提问，以确定他们是否有成功完成实验室所需的知识。 “潮湿”的实验室环境是化学的重要组成部分，不能被计算机设施所取代。学生们正在使用计算机接口的实验室方法，从“湿”实验室实验中获取和分析数据，作为本项目的一部分。实验室后的计算机实验室可以是一个地方，让学生对他们的实验室材料的学习进行评估，扩展他们的学习，并通过进一步的工作，如果发现不足之处进行指导。该设施还为在职教师提供了一个开发和使用教学和评估材料的途径，以促进化学学习。2年的实施期包括形成性和总结性评估，以加强项目中使用的教学和测验实践。 该项目的材料正通过计算机（万维网）、讲习班和印刷品提供给其他人。