For an alignment with the international teaching-learning methods, for achieving new competences and for obtaining better results in the PISA tests, we debate the Mathematical modelling which represents the connection between the processes in the real world and Mathematics. Modelling, as a teaching-learning process of Mathematics, has a highly developed theoretical context, researched and sustained even through the curriculum in different countries. Modelling helps the concret-intuitive thinking, and also helps someone keep in mind the information for a long-term. The present study answers to some basic questions: How much and how is the Mathematical modelling implemented in Romania? Which would be the plus value of the implementation in the teaching-learning process in the primary school? In the second part of this paper there are developed some examples of problems which could be the basis of the application of mathematical modelling in the primary school. We consider that these changes are quite necessary for the Romanian schooling system because they have been tested, successfully implemented and recommended to the teachers by the ministries which deal with education in many different countries-after a careful research, international projects. Even if this method is not developed in Romania, it could be successfully adopted if their results upon the students prove to be useful for their training and for a fast integration in the European labour market and so on. In this way, the alignment with efficient international standards could be done in a rhythm which is favourable for the human resource in our country. (C) 2017 Published by Future Academy www.FutureAcademy.org.uk