Mathematical education reform in Lithuania has already been carried out of about 15 years. Trying to fulfil this reform effective as it is possible it is importan to estimate the situation. Various reseaches are done (e.g.TIMSS). It‘s a pitty while analysing the results of TIMSS only perfunctory anglysis of data was done. It becomes important the wider use of the statistic methods. The work is devoted to the search of the methods mentioned above. The reseach in Kaunas was carried out in order to estimate the changes in the study of mathematics. The aim of the work is to find the statistic criteria and apply them to the evoluation of the students mathematical achievements. The abilities of girls and boys were compared and those living in the sities and in the country ��� side. After the anglysis of data and the fitting of the statistic criteria to them the following conclusions were made: · Not enough attention is paid to the new aspects while teaching maths. · The abilities in mathematics among the girls an boys are the same. · The abilities in maths of those living in the cities are more developed than the students living in the country – side. On that ground some recommendations are given: · In the process of training a teacher should become the assistant of student. · More visual training appliances should be used in order to develop student‘s spatial thinking. · Induce the use of IT, so that the calculation would become easier.