Textbooks play an influential role in any classroom ecology. If a textbook is not being used in its intended context, then its deployment in the classroom should be monitored for positive and negative effects. The following paper proposes the use of quantitative and qualitative reasearch methods to assess a popular elementary K-6 language arts textbook from a major US publisher in an English as a foreign language (EFL) environment in Taiwan. The paper was produced as part of the graduate course CEP 822: Approaches to Educational Research in the M.A. in Educational Technology program at Michigan State University.