The aim of the new ways of education is not similar to the principles of traditional teaching but is turning to preparing students for real life content through various practical ways. Project teaching is largely different from the traditional form of learning. It is defined as the form of active learning in which pupils, according to the proposed project, come up to new knowledge independently. The subject of project teaching was explored a problem that was previously set by the teacher. Project teaching is really focused on students because it is often the pupils in it that disclose it. The discovery is visible through the needs of the pupil and their potentialities during the implementation of the project. Teachers in Croatian schools are aware of the benefits that enable it to apply the project to teaching, but they rarely decide on this form of association organization because they are sputaneous organizational problems. Today, the application of project mathematical learning in Croatia in most cases is related to the application of mathematics, as well as free activities or work beyond the expected teaching time.