Promoting Investigative Learning in Biology Laboratories Using Computer-Based Data Acquisition Systems

Daniel Udovic DUE 9551950 U of Oregon Eugene FY1995 $39,083 Eugene， OR 97403 ILI -仪器仪表项目：生命科学教学实验室应该是课程的智力催化剂，在那里学生体验科学努力的各个方面，在那里他们面临挑战，面对他们对自然世界的误解，在那里他们学会构建解释和意义，而不是找到“正确”的答案。在许多本科生实验室中，用于收集数据的设备成为学生学习和参与的障碍。通常，实验室协议迫使学生专注于数据收集的技术方面，而不强调所呈现的潜在科学原理。要在智力上参与，学生必须参与研究，也就是说，他们必须参与实验的设计和结果的解释。本提案所要求的设备将用基于计算机的数据采集工具取代目前的模拟设备，如示波器和图表记录器，从而有可能加强学生在生物学教学实验室的学习。开发定制的用户界面和利用计算机设备设计的课程材料将：通过为学生提供快速分析数据的工具，强调批判性思维技能的使用；通过让学生关注重要的科学概念而不是仪器本身来打破学习障碍；并通过鼓励研究性实验室活动，弥合教学实验室经验和独立研究机会之间的差距。将购买为两个实验室（服务48-60名学生）配备电子数据采集和分析系统所需的材料。设备将是通用的，足以用于各种各样的课程，服务于生物专业和非专业。

Daniel Udovic DUE 9551950 U of Oregon Eugene FY1995 $39,083 Eugene, OR 97403 ILI - Instrumentation Project: Life Sciences Title: Promoting Investigative Learning in Biology Laboratories Using Computer-Based Data Acquisition Systems Teaching labs should be the intellectual catalysts of a curriculum, where students experience all aspects of the scientific endeavor, where they are challenged to confront their misconceptions about the natural world, and where they learn to construct explanations and meaning rather than find the "right" answers. In many undergraduate labs the equipment used to collect data acts as a barrier to student learning and participation. Often laboratory protocols force students to focus on the technical aspects of data collection while de-emphasizes the underlying scientific principles being presented. To be intellectually involved student must participate in investigations, that is, they must be involved in the design of experiments and the interpretation of results. The equipment requested in this proposal will make it possible to enhance student learning in biology teaching labs by replacing current analog devices, such as oscilloscopes and chart recorders with computer-based tools for data acquisition. The development of customized user interfaces and curricular materials designed to take advantage of the computer-based equipment will: emphasize the use of critical thinking skills by giving students the tools to quickly analyze their data; break down obstacles to learning by allowing students to focus important scientific concepts rather than instrumentation per se; and bridge the gap between teaching lab experiences and independent research opportunities by encouraging investigative lab activities. Materials necessary to equip two lab rooms (serving 48-60 students) with systems for electronic data acquisition and analysis will be purchased. The equipment will be general enough to be used in a wide variety of courses serving both biology majors and non-majors.