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Direct linkSelter, Christoph; Gräsel, Cornelia; Reinold, Martin; Trempler, Kati – ZDM: The International Journal on Mathematics Education, 2015
Previous findings indicate that the effectiveness of in-service teacher training can be increased by a (pedagogical) content knowledge orientation on the one hand and the stimulation of cooperation among teachers on the other. In this paper, three versions of a multi-phase training program were compared in a quasi-experimental field study with a…
Descriptors: Mathematics Teachers, Elementary School Mathematics, Elementary School Teachers, Inservice Teacher Education
Mayer, Richard E.; Johnson, Cheryl I. – Journal of Educational Psychology, 2008
College students viewed a short multimedia PowerPoint presentation consisting of 16 narrated slides explaining lightning formation (Experiment 1) or 8 narrated slides explaining how a car's braking system works (Experiment 2). Each slide appeared for approximately 8-10 s and contained a diagram along with 1-2 sentences of narration spoken in a…
Descriptors: Multimedia Instruction, Epistemology, College Students, Multimedia Materials
