In this study, reflections of problem solving environment based on group work are presented. Samples of the study are 28 students studying on 9th grade of a secondary school in Trabzon. In this study a historical problem of Fibonacci in his book "Liber Abaci" arranged appropriately to the problem solving steps of Polya and a worksheet was designed. Worksheet was applicated to the students during two lesson hours in pairs. The written opinions of students were taken after the application. When data is generally evaluated, it is seen that students only have difficulties in understanding the problem step because it is given just only linguistically. When worksheets are evaluated, it is seen that students get the lowest marks in evaluating the problem step. At the end of the study, it is advised to the teachers to use historical problems and problem solving activities based on group working in their lessons.