Concept maps measured a student's understanding of the complexity of concepts, and interrelationships. Novak and Gowin (1984) claimed that the continuous use of concept maps increased the complexity and interconnectedness of students' understanding of relationships between concepts in a particular science domain. This study has two purposes; the…

This work discusses repertory grid analysis as a tool for investigating the structures of students' representations of biological concepts. Repertory grid analysis provides the researcher with a variety of techniques that are not associated with standard methods of concept mapping for investigating conceptual structures. It can provide valuable…

Background and purpose: The purpose of this study was to investigate and identify the nature and the interrelatedness of pre-service teachers' misconceptions and scientific concepts for explaining dissolving before, during, and after a 5E learning cycle lesson on dissolving, the intervention. Sample, design, and methods: Guided by Vygotsky's…

Concept mapping is a technique that paves the way to represent knowledge schematically. In this research, concept mapping was used as an assessment method on the impulse-momentum topic. The purpose of this study was to determine teacher candidates' knowledge about understanding of the concepts of impulse and momentum by comparing and contrasting…

Johann Wolfgang Dobereiner, in 1829, made the first significant attempt to reveal a relation between the properties of the chemical elements and their atomic weights. His groupings remain useful for providing reasonable estimates for the properties and the atomic weights of the trans-lawrencium elements.