Using Astronomical Photographs to Investigate Misconceptions about Galaxies and Spectra: Question Development for Clicker Use
Hyunju Lee, Stephen E. Schneider

TL;DR
This paper develops and validates concept questions based on students' misconceptions about galaxies and spectra, to improve teaching and assessment in astronomy classes using clicker technology.
Contribution
It introduces a systematic approach to identify misconceptions and creates targeted concept questions for formative assessment in astronomy education.
Findings
Identified common misconceptions about galaxies and spectra.
Developed effective clicker questions to diagnose student understanding.
Provided a validated set of questions for classroom use.
Abstract
Many topics in introductory astronomy at the college or high-school level rely implicitly on using astronomical photographs and visual data in class. However, students bring many preconceptions to their understanding of these materials that ultimately lead to misconceptions, and research about students' interpretation of astronomical images has been scarcely conducted. In this study we probed college students' understanding of astronomical photographs and visual data about galaxies and spectra, and developed a set of concept questions based on their common misconceptions. The study was conducted mainly in three successive surveys: 1) open-ended questions looking for students' ideas and common misconceptions, 2) combined multiple-choice and open-ended questions seeking to explore student reasoning and to improve concept questions for clickers, and 3) a finalized version of the concept…
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Taxonomy
TopicsInnovative Teaching Methods · Innovations in Educational Methods · Educational Assessment and Pedagogy
