Development and Assessment of Multimedia for "Motor Workshop"

将设计、开发和评估基于多媒体的标题和课程计划，以支持在一系列学习阶段学习直流电机。这部多媒体作品将被称为汽车工作室。潜在用户范围从一年级的物理系学生到工程学硕士水平的学生。主题将是次分数马力直流电机。这门学科与各种技术领域相关，包括学习电学和磁学的物理学学生，学习电路分析和设计的电气工程师，以及寻找合适的电机来驱动特定设备的机械设计师。我们已经开始与斯坦福大学课程的讲师合作，这些课程向工程本科生介绍直流电机，以确定他们特定课程中与电机相关的学习目标。所有人都对他们和他们的学生可以利用马达获得增强材料的前景充满热情。我们与课程讲师的下一步工作是制定初步的课程计划。由此产生的对各种课程的特殊需要的了解，以及对如何在每门课程中使用多媒体课程的设想，将在很大程度上构成设计和开发多媒体标题的基础。这一规划阶段的其他主要投入来源将是教育、人机界面设计和认知科学社区最近的工作。由此产生的软件标题，电机车间，将是一个全面的和脚手架的信息资源，与小型直流电机的所有方面有关。所谓脚手架，我们的意思是概念将以一种渐进的方式呈现，以便它们建立在深度和复杂性上。汽车工作室的结构将允许更成熟的学生进入更高级的水平，但如果她发现有必要复习，将允许她返回更基本的材料。电机研讨会将包括术语和基本物理学原理，其中将详细说明电机的基本功能、扭矩、速度和功率的概念、电路设计问题、电机的基本功能和电路设计的解释、关键电机规格的确定和基于这些数据的电机选择，以及为特定应用推荐电机的子类别，可能会将目录数据嵌入到软件中。汽车研讨会将在斯坦福大学核心教师的参与下进行开发。此外，它将分发给亚利桑那州立大学(D.Evans教授)和德克萨斯大学(K.Wood教授)的工程学教员，供他们评估其可移植到其他机构。利用我们已有经验的各种评估技术，包括测试前后的成绩比较、问卷调查和录像观察，我们将试图证明我们的假设，即基于计算机的信息资源可以被开发，这将对广泛发展的学生的学习环境产生积极的影响。这不是该小组创建的第一个多媒体标题。还开发了另外三个标题(自行车解剖、电钻堆栈、链接)，以加强编入课程的资源和观点。这些头衔一直在我们的本科课程中使用。拟议的直流电机标题将建立在我们从评估学生在过去两年中使用自行车解剖、电钻堆栈和链接中学到的经验教训的基础上。

A multimedia-based title and curricular plan that supports learning about DC motors across a range of learning stages will be designed, developed, and assessed. The multimedia piece will be called Motor Workshop. Prospective users range from freshman physics students to masters-level engineering students. The subject matter will be sub-fractional horsepower DC electric motors. This subject is relevant in a variety of technological fields including physics students learning about electricity and magnetism, electrical engineers learning about circuit analysis and design, and mechanical designers seeking the proper motor to drive a particular device. We have begun working with the instructors of the Stanford courses that introduce engineering undergraduate students to DC motor to define the learning objectives related to motors in their particular course. All are enthusiastic about the prospect of enhanced materials being available to them and their students on motors. The next step in our work with the course instructors is to develop a preliminary curricular plan. The resulting understanding of the particular needs of the various courses and a vision of how multimedia-based curriculum might be used in each course will in large part form the basis for designing and developing the multimedia title. Other major sources of input during this planning phase will be recent work in the Education, Human Computer Interface Design, and Cognitive Science communities. The resulting software title, Motor Workshop, will be a comprehensive and scaffolded information resource pertaining to all aspects of small, DC motors. By scaffolded we mean that concepts will be presented in a graduated manner so that they build in depth and complexity. The architecture of Motor Workshop will allow a more mature student to enter at a more advanced level, but will allow her to return to more basic materials if she finds the need for review. Motor Workshop will include terminology and first principles of physics which will explicate the basic function of motors, concepts of torque, speed and power, issues of circuit design, explanations of the basic function of motors and circuit design, determination of critical motor specifications and the choice of a motor based on these data, and recommended subclasses of motors for particular applications, possibly with catalog data embedded into the software. Motor Workshop will be developed with input from the core instructors at Stanford University. In addition, it will be distributed to engineering faculty at Arizona State University (Prof. D. Evans) and University of Texas (Prof. K. Wood) for them to evaluate its portability to other institutions. Using a variety of assessment techniques that we have had experience with, including pre- and post-test performance comparisons, questionnaires and videotaped observation (VIA), we will attempt to prove our hypothesis that computer-based information resources can be developed which will have a positive effect on the learning environment of a wide developmental range of students. This is not the first multimedia title that this group has created. Three other titles (Bicycle Dissection, The Electric Drill Stack, Linkages) were developed in order to enhance the resources and points of view scripted into the curriculum. These title are consistently being used in our undergraduate curriculum. The proposed DC motor title will built upon the lessons we learned from assessing students working with Bicycle Dissection, The Electric Drill Stack, Linkages over the last two years.