Peter Busse, Ramón Díaz
What are the television viewing and eating habits of children in Peru?
Global health promotion
transforming science learning studentcentered instruction engages students variety scientific practices central national scienceteaching reform efforts study employed largescale randomizedcluster experimental design compare effects studentcentered teachercentered approaches elementary school students understanding spacescience concepts data included measures student characteristics learning teacher characteristics fidelity instructional approach results reveal learning outcomes higher students enrolled classrooms engaging scientific practices studentcentered approach two moderators identified statistical search potential causal mechanisms observed outcomes uncovered two potential mediators students understanding models evidence selfefficacy teachers