The dynamic software has developed a helpful tool to teach and learn mathematics. In Vietnam, mathematics teachers working at secondary schools have been encouraged to use dynamic software to assist their teaching jobs. Many teachers knew how to use GeoGebra to teach mathematics knowledge as well as guide their students to solve problems. The problem is that as a mathematics problem solver, with assistance of GeoGebra how does the teacher carry out problem solving. It was a main research problem which we wanted to discover. The study was a try - out of 27 mathematics teachers who are teaching in secondary schools
locating in Mekong Delta - Vietnam. The results showed that the teachers did not make of
strong points of GeoGebra to solve the problem given yet.