ERIC Number: EJ1085705
Record Type: Journal
Publication Date: 2016-Jan
Abstractor: As Provided
A New Lecture-Tutorial for Teaching about Molecular Excitations and Synchrotron Radiation
Wallace, Colin S.; Prather, Edward E.; Hornstein, Seth D.; Burns, Jack O.; Schlingman, Wayne M.; Chambers, Timothy G.
Physics Teacher, v54 n1 p40-44 Jan 2016
Light and spectroscopy are among the most important and frequently taught topics in introductory college-level general education astronomy courses (hereafter Astro 101). This is due to the fact that the vast majority of observational data studied by astronomers arrives at Earth in the form of light. While there are many processes by which matter can emit and absorb light, Astro 101 courses typically limit their instruction to the Bohr model of the atom and electron energy level transitions. In this paper, we report on the development of a new "Lecture-Tutorial" to help students learn about other processes that are responsible for the emission and absorption of light, namely molecular rotations, molecular vibrations, and the acceleration of charged particles by magnetic fields. Note that this paper primarily focuses on describing the variety of representations and reasoning tasks designed for this "Lecture-Tutorial"; while the end of this paper highlights some data that are suggestive of the "Lecture-Tutorial's" effectiveness, our more comprehensive analysis of its efficacy will be presented in a future publication.
Descriptors: Radiation, Molecular Structure, Tutoring, Lecture Method, Teaching Methods, Light, Spectroscopy, College Science, Astronomy, Demonstrations (Educational), Instructional Effectiveness, Educational Practices
American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail: firstname.lastname@example.org; Web site: http://scitation.aip.org/tpt
Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education; Postsecondary Education
Authoring Institution: N/A
Grant or Contract Numbers: N/A