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Direct linkSalta, Katerina; Tzougraki, Chryssa – Research in Science Education, 2011
The students' performance in various types of problems dealing with the conservation of matter during chemical reactions has been investigated at different levels of schooling. The participants were 499 ninth grade (ages 14, 15 years) and 624 eleventh grade (ages 16, 17 years) Greek students. Data was collected using a written questionnaire…
Descriptors: Low Achievement, Chemistry, Problem Solving, Correlation
