4. Discussion In the present study, the relation between the success of elementary mathematics prospective teachers in problem posing and solving the posed problems about the topic of series and sequences was investigated. According to data in Table 1, it can be stated that the level of problem posing skills of prospective teachers in a given situation was low. Furthermore, it is evident that there are serious difficulties in problem posing taking the prospective teachers who could not even pose a problem suitable for the given situation; the voluntary participation of prospective teachers was taken into consideration. The success percentage was higher in the second question of problem posing; this may be associated with the semi-abstract quality of the pattern and convenience of the pattern for correlating with many situations in daily life. According to the results in Table 2, the conviction is in the direction of low problem solving success “except for problem 2”. The high level of success in the solving of the second question in the problem solving test results from the convenience of the question for using different problem solving strategies. According to the results in Table 3, prospective teachers use abstract strategies for conditions requiring forming formula and they use concrete strategies for conditions requiring forming algorithm. According to data in Table 4, prospective teachers who posed two or more problems have higher levels of problem solving than the prospective teachers who posed less than two problems. This finding is consistent with the statement “there is a significant relation between problem posing and solving taking the cognitive ways into consideration” of Lowrie (2002). The present study concluded that there is a significant relation between problem posing and solving scores of prospective teachers. This situation is consistent with result of the studies which emphasize that problem posing is not independent from problem solving (Leung, 1993; Silver & Cai, 1993; Gonzales, 1994; Silver, 1994; Silver & Cai, 1996; Cai & Hwang, 2002; English, 2003). The positive relation between problem posing and problem solving is an indicator of the acceptance of problem posing skills as a phase in the development of problem solving skills. 5. Conclusion and Recommendations The present study has assessed that prospective teachers have difficulty in posing a problem for a given pattern and solving the posed problem. During the lessons, sample problems set in the books are used. Taking into account the routine problems of printed books, which do not attract the attention of the students, they are not convenient for their capacity, students do not encounter similar events in the real life, and the importance of problem posing by the teachers is evident. Problem posing and solving via the experiences of the students are important elements in a constructivist approach. Thus, the use and permanence of the learnt knowledge was contributed. Prospective teachers should be compared according to their status of problem posing skills. Especially in branch teaching lessons, the correlation of knowledge with daily life problems should be encouraged. Students should be encouraged to relate problems to those encountered in their daily lives and this should not be neglected. Furthermore, the relation to real life of problems should be used in the preparation of the curriculum and in the student selection examinations.