Solving mathematical problems, as the main subject, is intended to improve one’s ability in mathematics. The approach adopted in this present research was a qualitative one with the subject of the second semester students of mathematics in mathematics department. Six students consisting of two students under high, two middle, and two low ability categories were involved in this research. The data were obtained through four problems in the geometry subject test. The validity test employed was the item validity and the four exersices showed the coefficients of 0.79; 0.75; 0.70, and 0.82, respectively, meaning that the four exersices fulfilled the problem validity, meanwhile the test of reliability showed the coefficient of 0.78, namely the problems also met the reliability requirement. The results of the research showed that students were aware of what to plan and to do in the problem solving. The respondents realized them by writing the aspects they knew and the problems they intended to solve. In terms of the learning results, the two groups, high and middle, possessed some awareness in problem solving, but the students under the low category may be said to have less awareness of what to do in problem solving.

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