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Direct linkPanaoura, Areti; Gagatsis, Athanasios; Deliyianni, Eleni; Elia, Iliada – Educational Psychology, 2009
Cognitive development of any concept is related with affective development. The present study investigates students' beliefs about the use of different types of representation in understanding the concept of fractions and their self-efficacy beliefs about their ability to transfer information between different types of representation, in relation…
Descriptors: Secondary Education, Self Efficacy, Factor Analysis, Cognitive Development
Peer reviewedGagatsis, Athanasios; Demetriadou, Helen – International Journal of Mathematical Education in Science and Technology, 2001
Presents an analysis of written solutions to geometry exercises in the last year of Greek Lyceum which showed relatively low performance on vector methods. Justifies pupils' false preconceptions with regard to the concept of vectors, and the strong influence of classical geometry teaching in the previous years. (Author/ASK)
Descriptors: Foreign Countries, Geometry, Mathematics Instruction, Problem Solving
