Browsing by Author "Gagatsis, Athanasios"
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Book
2nd Mediterranean Conference on Mathematical Education 79 January 2000 Nicosia  Cyprus
Gagatsis, Athanasios (Cyprus Mathematic. Society., 2000)

Conference Object
3rd Mediterranean Conference on Mathematical Education
Ελληνική Μαθηματική Εταιρεία; Κυπριακή Μαθηματική Εταιρεία; Gagatsis, Athanasios; Papastavridis, Stavros G. (Hellenic Mathematical Society, 2003)

Article
Ability to translate from one representation of the concept of function to another and mathematical problem solving
Gagatsis, Athanasios; Shiakalli, Myria (2004)Representations are used extensively in mathematics and translation ability is highly correlated with success in mathematics education. The authors investigate the translation ability of university students as far as the ...

Article
Affective and cognitive factors on the use of representations in the learning of fractions and decimals
Panaoura, Areti; Gagatsis, Athanasios; Deliyianni, Eleni; Elia, Iliada (2009)

Report
Algebraic and Geometric Approach in Function Problem Solving
Mousoulides,Nicholas G.; Gagatsis, Athanasios (International Group for the Psychology of Mathematics Education, 2004)This study explores students algebraic and geometric approach in solving tasks in functions and the relation of these approaches with complex geometric problem solving. Data were obtained from 95 sophomore preservice ...

Article
Ambiguity in the way of looking at geometrical figures
MichaelChrysanthou, Paraskevi; Gagatsis, Athanasios (2014)This paper discusses the different ways the students look at geometrical figures in solving geometrical tasks and the different types of reasoning that occur in relation to the different types of figural apprehension, ...

Article
Are registers of representations and problem solving processes on functions compartmentalized in students' thinking?
Gagatsis, Athanasios; Elia, Iliada; Mousoulides,Nicholas G. (2006)The purpose of the present study is twofold: first, to review and summarize previous research on the compartmentalization of different registers of representations and problem solving approaches related to the concept of ...

Article
Assessing Student ProblemSolving Skills
Kyriakides, Leonidas; Gagatsis, Athanasios (Structural Equation Modeling: A Multidisciplinary Journal, 2003)This study examines the construct validity of the Mathematical Patterns Test using data from 848 Cypriot primary school students. Descriptive analyses across 5 age groups suggested a developmental structure of individual ...

Article
Assessing the Crosscultural Applicability of Number Lines in Conducting Arithmetic Operations Using Structural Equation Modelling: A Comparative Study Between Cypriot, Italian and Greek Primary Pupils
Gagatsis, Athanasios; Kyriakides, Leonidas; Panaoura, Areti (2004)This study provides construct related evidence of the Arithmetical Operations Test (AOT) using data from 432 year 2 pupils from Cyprus, Greece and Italy. Deliberately, items involving the use of numberline diagrams have ...

Article
An attempt to overcome the epistemological obstacle in the case of fraction division
Kalogirou, Panayiota; Gagatsis, Athanasios; Michael, P.; Deliyianni, Eleni (2010)

Article
Behind the scenes of pseudoproportionality
Modestou, Modestina; Elia, Iliada; Gagatsis, Athanasios; Spanoudis, George C. (2008)In this study, we attempt to put in question students’ spontaneous and uncritical application of the simple and neat mathematical formula of linearity. This is impelled with the help of a written test involving geometrical ...

Article
Behind the scenes of pseudoproportionality
Modestou, Modestina; Elia, Iliada; Gagatsis, Athanasios; Spanoudis,George C. (2008)In this study, we attempt to put in question students' spontaneous and uncritical application of the simple and neat mathematical formula of linearity. This is impelled with the help of a written test involving geometrical ...

Article
Can the spontaneous and uncritical application of the linear model be questioned?
Modestou, Modestina; Gagatsis, Athanasios (2006)In this research paper we attempt to put in question students’ spontaneous and uncritical application of the simple and neat mathematical formula of linearity. This is impelled with the help of a written test, where students ...

Article
CERME7 Working Group 4: Geometry teaching and learning
Kuzniak, Alain; Richard, Philippe; Gagatsis, Athanasios (2012)In the WG4 sessions, a consensus was agreed favouring a common approach and discussions on the following specific topics: educational goals and curriculum in geometry; use of geometrical figures and diagrams; and understanding ...

Article
Classical versus vector geometry in problem solving. An empirical research among Greek secondary pupils
Gagatsis, Athanasios; Demetriadou, Helen (2001)An analysis of written solutions to geometry exercises in the last year of Greek Lyceum (1518 years old) showed relatively low performance on vector methods, which is justified on the one hand by pupils' false preconceptions ...

Article
Cognitive and Metacognitive Aspects of Proportional Reasoning
Modestou, Modestina; Gagatsis, Athanasios (2010)In this study we attempt to propose a new model of proportional reasoning based both on bibliographical and research data. This is impelled with the help of three written tests involving analogical, proportional, and ...

Book
Come misurare la leggibilita dei testi matematici
Gagatsis, Athanasios (Pitagora Editrice, 1999)

Article
Communicative interaction situations between children with symptoms of dyslexia constructing geometrical figures
Gagatsis, Athanasios (1999)

Article
A comparison between the hierarchical clustering of variables, implicative statistical analysis and confirmatory factor analysis
Elia, Iliada; Gagatsis, Athanasios (2008)This study aims to gain insight about the distinct features and advantages of three statistical methods, namely the hierarchical clustering of variables, the implicative method and the Confirmatory Factor Analysis, by ...

Article
Compartmentalization of representation in tasks related to addition and subtraction using the number line
Shiakalli, Myria; Gagatsis, Athanasios (2006)The present paper aims at identifying the difficulties that arise in the conversion from one mode of representation of the concepts of addition and subtraction to another, and examining the phenomenon of compartmentalization, ...