Vol. 42 Num. 3 (2022) - front cover0 Nikolaos Vroutsis ,  Giorgos Psycharis ,  Chrissavgi Triantafillou Crossing the boundaries between school mathematics and marine navigation through authentic tasks ABSTRACT 2 Michael D. Hicks Fostering productive ways of thinking associated with analogical reasoning in advanced mathematics ABSTRACT 10 Thorsten Scheiner ,  Marcia Pinto Sense-making in mathematics: an act of comprehension or creation? ABSTRACT 16 Colin Foster Using coherent representations of number in the school mathematics curriculum ABSTRACT 21 Nicholas Wasserman Re-exploring the intersection of mathematics and pedagogy ABSTRACT 28 Jessica Benally ,  Alik Palatnik ,  Kimiko Ryokai ,  Dor Abrahamson Learning through negotiating conceptually generative perspectival complementarities: the case of geometry ABSTRACT 34 Julian Brown Communication: A response to ‘Learning through negotiating conceptually generative perspectival complementarities: the case of geometry’42 Richard Kitchen Communication: Considering fishbone diagrams to develop a school-based research agenda43 Luis Felipe Prieto-Martínez Communication: The moving sofa problem: an unsolved problem in plane geometry46 May Hamdan Communication: Story of a limit point47 David Wagner Communication: What does the dichotomy do?50 Mourat Tchoshanov ,  Kevin Fierro ,  Gulshat Shakirova Articulating not knowing in mathematical reasoning ABSTRACT 51 David A. Reid Editorial57 - Index to Volume 4258 - Contributors60