The article deals with the formation of professional competencies in students-bachelors. Identify common approaches to defining a set of competences in the state standards of Russia and Kazakhstan. Identify the most important problems of implementation of the competency approach in training future elementary school teachers. Particular attention is paid to issues of multidisciplinary preparation of teachers of primary education. Experience of the implementation of the competency approach to date methodology of elementary mathematics education. The most important aspect of methodical preparation is the integration of professional skills of students. The authors describe how to implement an integrative approach to methodical disciplines. The authors examine the modern educational technology, active and interactive forms and methods of teaching that promote the formation of professionalism of future teachers. Particular attention is paid to the organization of micro-teaching, use of case studies, independent work of students in e-learning environment Moodle.