@conference{10902/28796, year = {2022}, url = {https://hdl.handle.net/10902/28796}, abstract = {The present work focuses on arithmetic word problem solving and explores the strategies used by 26 students diagnosed with autism spectrum disorder when solving multiplicative Cartesian producto problems. The students solved two outfit problems involving small and large numbers, respectively. The success in both problems was low. We found a variety of correct strategies, predominantly operation strategies. Most incorrect strategies were based on additive relations with modelling. We detail the difficulties observed during the problem-solving process, and implications for teaching students diagnosed with the disorder are drawn.}, organization = {This work has been carried out with the support of the project with reference PID2019-105677RB-I00 Funded by MCIN/ AEI /10.13039/501100011033, and by the Concepción Arenal Grants of the Government of Cantabria}, publisher = {Proceedings of the Twelfth Congress of the European Society for Research in Mathematics Education (CERME12), Free University of Bozen-Bolzano, Italy, European Society for Research in Mathematics Education, 2022}, title = {Informal strategies of students with autism spectrum disorder in solving Cartesian product problems}, author = {Vaerenbergh, Steven van and Polo Blanco, Irene and González de Cos, Lara and Goñi Cervera, Juncal}, }