Abstract
A questionnaire survey was conducted to the university students for identifying what kind of problems should be regarded as mathematical problems. The survey in the first stage had the result that problems from mathematics textbooks were most likely regarded as "mathematical" and other problems were not. In this study the aim was to find the difference between the concepts just after reading the problems and the one after really solving them. As the results it was found that the initial image was so robust that mathematical characters in the problems were hard to be identified.
