Editorial: Teaching mathematics and informatics around the world

This special issue of Open Mathematical Education Notes comprise five articles written as a follow-up on paper presentations at the 13th Serbian Mathematical Congress (Field 5: History, Learning and Teaching of Mathematics and Informatics) that was held in May 2014 in Vrnjačka Banja, the most popular spa resort of Serbia. Traditionally, the Congress, being the major scientific event in the life of the country, has an international flavor. This tradition is reflected in the diversity of contributors to the special issue representing, besides Serbia, such countries as Bosnia & Herzegovina, Germany, Trinidad & Tobago, and the United States.