Fan and Zhu (2007) list among heuristic strategies also the following strategies: “Draw a diagram”, “Guess and check”, “Look for a pattern”, “Make a systematic list”, “Use beforeafter
conception”. Eisner (1982), Sanford (1985), Kaufmann (1985) state that it is visual imagination which is crucially important in problem solving. Stacey (1991) characterizes the “Trial and
error strategy” as an intuitive strategy that anybody can use.
Fan and Zhu (2007) list among heuristic strategies also the following strategies: “Draw a diagram”, “Guess and check”, “Look for a pattern”, “Make a systematic list”, “Use beforeafterconception”. Eisner (1982), Sanford (1985), Kaufmann (1985) state that it is visual imagination which is crucially important in problem solving. Stacey (1991) characterizes the “Trial anderror strategy” as an intuitive strategy that anybody can use.
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