Development of a Suite of Demonstration Videos for Introductory Astronomy

这个项目正在制作一系列40多个以物理演示为中心的视频，这些视频非常适合用于天文学入门课程。这些短视频以各种格式和分辨率在网络上公开发布，很容易播放或下载。这些视频是高质量的，包含图形和计算机模拟的叠加，以阐明潜在的概念。每个视频都是由专家编写的脚本，因此在远程教育课程和课堂上都很有用。每个视频都配有互动教学材料，以吸引学生参与视频。智力优势：从入门天文学的概念被识别，并使用演示设备来说明这些概念的方法正在开发中。视频脚本在保持科学兴奋的同时，以一种有效的方式清晰地说明了这一现象。根据教育研究的建议，每个视频都配有互动材料，以最大限度地提高学生从演示中学习的能力。更广泛的影响：视频和辅助材料可以在网络上和DVD图像上获得，可以很容易地下载和刻录。这些视频放在内布拉斯加大学的天文学教育网站上，这个网站已经被天文学教师广泛使用。视频也被托管在Youtube和Vimeo上，并被纳入诺顿出版公司基于网络的家庭作业系统。视频很简短，附带的互动材料也很简短。因此，天文学教师可以很容易地将它们纳入现有的教学结构而不会受到干扰。学生们对视频的高度视觉性、与社交媒体网站的联系以及视频的简洁反应良好。这些录象正在被广泛采用，并在天文学课堂和远程教育课程中广泛使用。

This project is developing a series of more than 40 videos centered on physical demonstrations that are ideal for use in introductory astronomy courses. The short videos are being made publicly available on the web in a variety of formats and resolutions and easily played or downloaded. The videos are high-quality and contain overlays of graphics and computer simulations to illuminate the underlying concepts. Each video is narrated from a script developed by experts, and thus can be useful in distance education courses as well as in the classroom. Each video is accompanied by interactive instructional materials to engage students in the video. Intellectual Merit: Concepts from introductory astronomy are identified and ways to illustrate these concepts using demonstration equipment are being developed. Video scripts clearly illustrate the phenomena in a time efficient manner while maintaining the excitement of science. Interactive materials accompany or are incorporated into each video, based on the recommendations of educational research to maximize student learning from demonstrations. Broader Impacts: The videos and supporting materials are being made available on the web and on DVD images that can easily be downloaded and burned. The videos are hosted on the Astronomy Education web site at the University of Nebraska, a site that is already widely-used by astronomy faculty. Videos are also being hosted on Youtube, Vimeo, and incorporated into the web-based homework system of Norton Publishing. The videos are brief and so are the interactive materials that accompany them. Thus, astronomy faculty can easily incorporate them into an existing instructional structure without disruption. Students respond favorably to the highly-visual nature of the videos, linkages with social media sites, and the brevity of the videos. These videos are being widely adopted and are widely useful in the astronomy classroom and in distance education courses.