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Paper presentations 
TWG 8 Affect and Mathematical Thinking Suite 685 TWG leader: Pietro Di Martino

TWG8.PA1 
Positioning and emotions in learning algebra: The case of middle achieving students Wajeeh Daher*^{1,2}, Osama Swidan^{2,3}, Amani Masarwa^{2} ^{ 1}AnNajah National University, Occupied Palestinian Territory, ^{ 2}AlQasemi Academic College of Education, Israel, ^{ 3}Kay Academic College of Education, Israel 
TWG8.PA2 
Changing images of mathematics in the transition from school to vocational education Diane Dalby University of Nottingham, UK 
TWG8.PA3 
The role of affect in failure in mathematics at the university level: the tertiary crisis Pietro Di Martino*, Francesca Gregorio University of Pisa, Italy 
TWG8.PA4 
Primary future teachers' expectations towards development courses on mathematics teaching Silvia Funghi University of Modena and Reggio Emilia, Italy 
TWG8.PA5 
A characterisation of attitude grounded on proportionality María del Socorro García González*^{1}, Rosa María Farfán Márquez^{2} ^{ 1}Research Centre of Mathematics Education, Autonomous University of Guerrero, Mexico, ^{ 2}Centre of Research and Advanced Studies of the National Polytechnic Institute for Mexico CinvestavIPN, Mexico 
TWG8.PA6 
Regression trees and decision rules applied to the study of perplexity: Issues and methods Inés M. GómezChacón*, J. Tinguaro Rodríguez Universidad Complutense de Madrid, Spain 
TWG8.PA7 
Lower secondary students' experiences of outdoor learning in mathematics  impact on selfregulation and mathematical proficiency Annika Grothérus*, Emilia Fägerstam Linköping University, Sweden 
TWG8.PA8 
Finnish educators’ conceptions of the socialemotional needs of mathematically gifted high school students Eeva Haataja*, Anu Laine University of Helsinki, Finland 
TWG8.PA9 
The qualitative differences in generative characteristic of the aesthetic sensibility: analysis of learners’ problem solving Hayato Hanazono University of Tsukuba, Japan 
TWG8.PA10 
Identifying subgroups of CERME affect research papers Markku S. Hannula*, Enrique Garcia MorenoEsteva University of Helsinki, Finland 
TWG8.PA11 
Tracing mathematicsrelated belief change in teacher education programs Çigdem Haser*, Isil Isler Middle East Technical University, Turkey 
TWG8.PA12 
Teaching selfregulation strategies with SOLVE IT to two students with learning disabilities: Effects on mathematical problemsolving performance Paraskevi Keffe*, Irini Dermitzaki, Sotiria Tzivinikou, Charoula Stathopoulou University of Thessaly, Greece 
TWG8.PA13 
The mathematical values in the Turkish middle school mathematics applications course curriculum Gülcin Tan Sisman^{1}, Busra Kirez*^{2} ^{ 1}Hacettepe University, Turkey, ^{ 2}Hacettepe University, Turkey 
TWG8.PA14 
To err is human. The management and emotional implications of teacher error Elizabeth Lake^{1,2} ^{ 1}UCL Institute of Education, UK, ^{ 2}UEA, UK 
TWG8.PA15 
Students' images of mathematics: the role of parents' occupation Ciara Lane University of Limerick, Ireland 
TWG8.PA16 
Emotions and problem solving by prospective primary school teachers Gareth Lewis University of Leicester, UK 
TWG8.PA17 
On the edges of flow: Student engagement in problem solving Peter Liljedahl Simon Fraser University, Canada 
TWG8.PA18 
Exploring daily emotions of a mathematics teacher in classroom: Case of Christian Gustavo Martinez Sierra*^{1}, Yuridia ArellanoGarcía^{1}, Antonia HernándezMoreno^{1}, Cristian NavaGuzmán^{2} ^{ 1}Research Centre of Mathematics Education, Mathematics Faculty, Autonomous University of Guerrero, Mexico, ^{ 2}Autonomous University of Hidalgo, Mexico 
TWG8.PA19 
The suitability of rich learning tasks from a pupil perspective Elisabet Mellroth^{1} ^{ 1}Karlstad University, Sweden, ^{ 2}City of Karlstad, Sweden 
TWG8.PA20 
Upper secondary mathematics teachers' beliefs expressed through metaphors Marilena Pantziara*^{1}, Marianna Karamanou^{2}, Alexandra Petridou^{3} ^{ 1}Cyprus Pedagogical Institute, Cyprus, ^{ 2}Ministry of Education and Culture, Cyprus, ^{ 3}Centre of Educational Research and Evaluation, Cyprus 
TWG8.PA21 
Multiple solutions for realworld problems and students' enjoyment, and boredom Stanislaw Schukajlow*, Kay Achmetli University of Münster, Germany 
TWG8.PA22 
Selfefficacy and mathematics performance: reciprocal relationships Karin Street*^{1,2}, LarsErik Malmberg^{1}, Gabriel J. Stylianides^{1} ^{ 1}University of Oxford, UK, ^{ 2}University College of Sogn & Fjordane, Norway 
TWG8.PA23 
Personal meaning and motivation when learning mathematics Neruja Suriakumaran*, Christoph Duchhardt, Maike Vollstedt Faculty 3, Mathematics Education, Germany 
TWG8.PA24 
Mathematical memory revisited: mathematical problem solving by high achieving students Attila Szabo Stockholm University, Department of Mathematics and Science Education, Sweden 
TWG8.PA25 
A case study on Finnish pupils' mathematical thinking: Problem solving and view of mathematics Hanna Viitala University of Agder, Norway 
