Editing Insight (section)

====Breaking functional fixedness====
[[File:RAT problem, DLW.png|thumb|Example of a RAT problem.]]
The first type of problem forces participants to use objects in a way they are not accustomed to (thus, breaking their [[functional fixedness]]). An example is the "Duncker candle problem",<ref name="Nature of insight" /> in which people are given matches and a box of tacks and asked to find a way to attach a candle to the wall to light the room.<ref name=Duncker>{{cite journal|last1=Duncker|first1=Karl|last2=Lees|first2=Lynne&nbsp;S.|title=On problem-solving|journal=Psychological Monographs|year=1945|volume=58|issue=5|pages=i–113|doi=10.1037/h0093599}}</ref> The solution requires the participants to empty the box of tacks, set the candle inside the box, tack the box to the wall, and light the candle with the matches.