Razumevanje koncepta ulomkov: analiza kognitivnih ovir bodočih učiteljev matematike
Povzetek
Raziskave kognitivnih ovir v povezavi z razumevanjem koncepta ulomkov bodočih učiteljev so pomembne, saj je uspeh učiteljev odvisen od njihovih veščin. Usvojitev razumevanja koncepta ulomkov predstavlja kompleksen problem; za njegovo rešitev je potrebna strategija. V raziskavi so predstavljene kognitivne ovire bodočih učiteljev, ki bodo poučevali v srednjih šolah, na primeru testov razumevanja koncepta ulomkov, pri čemer se raziskava osredinja na naslednji kategoriji kognitivnih ovir: epistemološke (jezikovna predstavitev, težnja po posploševanju in zanašanju na intuicijo) in didaktične (manj smiselno učenje in strategija). Pri preučevanju skupine dvajsetih bodočih učiteljev matematike je bil uporabljen kvalitativni deskriptivni pristop; preizkušanci, ki so naleteli na kognitivne ovire pri testu razumevanja koncepta ulomkov, so bili razvrščeni na podlagi podobnih odgovorov; s sedmimi je bil nato opravljen intervju. Ugotovitve raziskave so pokazale, da so se pri petih bodočih učiteljih matematike ovire prekrivale, in sicer: jezikovna predstavitev in težnja po posploševanju; težnja po posploševanju in manj smiselnem učenju; jezikovna predstavitev, težnja po zanašanju na intuicijo ter po strategiji poskusov in napak; jezikovna predstavitev ter poskusi in napake ter jezikovna predstavitev in težnja po zanašanju na intuicijo.Prenosi
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