Project CLEA: Contemporary Laboratory Experiences in Astronomy

项目CLEA（天文学的当代实验室经验）发展天文学的实验室练习。该项目侧重于开发实验室练习，以补充项目CLEA的现有材料套件。新的练习是(1)双星的径向速度和寻找系外行星，(2)造父变星和宇宙距离尺度。这些练习包括基于pc的天文观测技术模拟，使用真实的天体物理数据，以及学生练习册和教师的技术手册。此外，CLEA项目已经为PC开发了第三个练习，通过交互式的基于web的应用程序进行了调整。对这些材料的课程影响和教学效果的评估是在不同的机构（大学、四年制学院、两年制学院和高中）中进行的，通过外部评估人员的观察和在线问卷分析。CLEA项目的材料可在一个专门网站（http://www.gettysburg.edu/academics /physics/ CLEA /lam.html）上获得，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，包括在过去8年中开发的一打练习的完整套件，作为这个项目的最终产品，可以通过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.