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Balukovic, Jasmina; Slisko, Josip – European Journal of Physics Education, 2018
A recent textbook research, carried out on a sample of 20 American physics textbooks, shows that the authors mainly keep the old definition of weight. According to that definition, the weight of a body is the gravitational force on the body. In such a conceptual frame, the objects in the spaceship are "apparently weightless" because they…
Descriptors: Physics, Scientific Concepts, Science Instruction, Textbooks
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Balukovic, Jasmina; Slisko, Josip; Hadzibegovic, Zalkida – European Journal of Physics Education, 2011
Since 2003, international project PISA evaluates 15-year old students in solving problems that include "decision taking", "analysis and design of systems" and "trouble-shooting". This article presents the results of a pilot research conducted with 215 students from first to fourth grade of a high school in Sarajevo…
Descriptors: Science Instruction, Secondary School Science, High School Students, Transportation