Bell, M., Shumway, S. and Wright, G. 2020. An Investigation of the Impact of a Flipped Classroom Instructional Approach on High School Students’ Content Knowledge and Attitude Toward the Learning Environment. Advances in Social Sciences Research Journal. 7, 5 (May 2020), 338–349. DOI:https://doi.org/10.14738/assrj.75.8259.