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Direct linkGkitzia, Vasiliki; Salta, Katerina; Tzougraki, Chryssa – Chemistry Education Research and Practice, 2020
Meaningful understanding of chemistry, among others, includes the ability of an individual to think simultaneously at macroscopic, submicroscopic and symbolic levels, and this presupposes the competence to translate between different types of chemical representations. In this study, we investigated 11th grade Greek students' and 3rd year…
Descriptors: Chemistry, Science Instruction, Grade 11, Secondary School Science
Vachliotis, Theodoros; Salta, Katerina; Tzougraki, Chryssa – Research in Science Education, 2014
The purpose of this study was dual: First, to develop and validate assessment schemes for assessing 11th grade students' meaningful understanding of organic chemistry concepts, as well as their systems thinking skills in the domain. Second, to explore the relationship between the two constructs of interest based on students' performance…
Descriptors: Science Instruction, Organic Chemistry, Grade 11, High School Students
Vachliotis, Theodoros; Salta, Katerina; Vasiliou, Petroula; Tzougraki, Chryssa – Journal of Chemical Education, 2011
Systemic assessment questions (SAQs) are novel assessment tools used in the context of the Systemic Approach to Teaching and Learning (SATL) model. The purpose of this model is to enhance students' meaningful understanding of scientific concepts by use of constructivist concept mapping procedures, which emphasize the development of systems…
Descriptors: Constructivism (Learning), Concept Mapping, Scientific Concepts, Program Effectiveness
