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Vocal agility in the male adolescent changing voice
(University of Missouri--Columbia, 2005)
This study was designed to investigate agility in adolescent changing voice males. Participants (N = 58), 11.5 to 15.9 years old, were from six Midwestern schools. The boys had varied experience in school and/or community ...
Examining the pedagogical content knowledge and practice of experienced secondary biology teachers for teaching diffusion and osmosis
(University of Missouri--Columbia, 2010)
Teachers are the most important factor in student learning (National Research Council, 1996); yet little is known about the specialized knowledge held by experienced teachers. The purpose of this study was twofold: first, ...