[justify]The term “[i]problem posing[/i]” is used in different meanings, such as [i]problem finding, problem generating, problem creating, problem sensing, problem formulating, creative problem discovering, problematizing, problem envisaging, problem modelling, [/i]etc. Problem posing is frequently defined as: [/justify][list][*][justify]engaging a person in a task, the goal of which is to generate a new problem with a given set of conditions (Silver, 1994, p. 19); [/justify][/*][*][justify]the formulation of novel problems with solution unknown at least for its creator (Van den Heuval-Panhuizen et al. 1995);[/justify][/*][*][justify]reformulation of an existing problem (Cohen & Stover, 1981); [/justify][/*][*][justify]the generation of new problems and the reformulation of given problems (Singer, Ellerton, & Cai, 2013, p. 3); [/justify][/*][*][justify]a special case of problem solving (Kontorovich, Koichu, Leikin, & Berman, 2012, p. 151); [/justify][/*][*][justify]a process by which, based on mathematical experience, students construct personal interpretations of concrete situations and from these situations formulate meaningful mathematical problems (Sriraman & Lee, 2011, p. 9; E. Stoyanova & Ellerton, 1996, p. 518).[/justify][/*][/list]