Project CLEA: Contemporary Laboratory Experiences in Astronomy

CLEA项目（当代天文学实验室经验）开发天文学实验室练习。该项目侧重于开发实验室练习，以补充CLEA项目的现有成套材料。 新的练习是（1）双星的径向速度和太阳系外行星的搜索，和（2）造父变星和宇宙距离尺度。这些练习包括使用真实的天体物理学数据、沿着学生练习册和教师技术手册进行的基于个人电脑的天文观测技术模拟。此外，第三个练习是CLEA项目为个人电脑开发的练习，经修改后，可通过互动式网络应用程序进行，在不同的机构对这些材料的课程影响和教学效果进行评估（大学，四年制学院，两年制学院和高中），通过外部评估员的观察和在线问卷的分析。CLEA项目的材料可在一个专门的网站上查阅（www.gettysburg.edu/academics），并在国家和区域教师会议的讲习班上进一步传播，这些材料包括过去8年来制定的一整套十几项练习，作为该项目的最终产品，可作为一个包提供，由商业出版商或非营利教育组织分发。

Project CLEA (Contemporary Laboratory Experiences in Astronomy) develops laboratory exercises in astronomy. The project focuses on the development of laboratory exercises to complement the existing suite of materials for Project CLEA . The new exercises are (1) Radial velocities of binary stars and the search for Extrasolar Planets, and (2) Cepheid Variables and the Cosmic Distance Scale. These exercises consist of PC-based simulations of astronomical observing techniques, using real astrophysical data, along with student workbooks and technical manuals for teachers. In addition a third exercise, from those already developed for the PC by Project CLEA, is adapted for delivery via an interactive Web-based application.Evaluation of the curricular impact and pedagogical effectiveness of these materials is conducted at a diverse group of institutions (Universities, 4-year colleges, Two Year Colleges, and High Schools), by observations by an external evaluator and through the analysis of on-line questionnaires. Project CLEA materials are available on a dedicated website (http://www.gettysburg.edu/academics /physics/clea/lam.html), and are disseminated further at workshops at national and regional teachers' meetings.The materials, including an entire suite of a dozen exercises developed over the past 8 years, are available as a package as an end-product of this project, distributed either by a commercial publisher or by a non-profit educational organization.