Section A: Education in Mathematics

Boyko Bantchev

Polygons for the Secondary School

Dobrinka Boykina, Elena Todorova  

Reflexive Approach in Mathematics Education

Lilyana Karakasheva

On the Project Method for Creating Methodological Competence in Prospective Teachers

Stanislava Koleva, Katya Chalakova

Interactive MozaBook Lessons and Teaching Mathematics in Bilinguals

Zdravko Lalchev

For Durer’s Numerical Squares (in Classes in Recreational Mathematics)

Ivanka Marasheva-Delinova

Developing Projects within the Framework of International Baccalaureate training at the Uwekind International School

Marin Marinov, Petya Asenova 

Investigating Some Properties of Quadratic Curves with Computers

Veselin Nenkov

A Generalization of van Lamoen’s Theorem

Veselin Nenkov, Stanislav Stefanov, Haim Haimov

An Application of Quadrilateral’s Geometry in Solving Competitive Mathematical Problems

Rosen Nikolaev, Tanka Milkova

Special Features of Constructing Numbers in Roman Numerals

Nina Patronova

The Role of the Individual in the History of Russian-Bulgarian Relations of SAFU

Maria Pavlova

Development of the Project “Experimental Mathematics” for Schoolchildren

Natalia Pavlova, Dragomir Marchev

Reflection in the Game Approach

Petar Petrov, Yordan Ivanov, Asen Velchev, Stanislav Stefanov 

Innovative Practices in Mathematics Education in Bulgaria

Raisa Ovchinnikova

International Russian-Bulgarian MITE Project in Arkhangelsk Region

Tatiana Sergeeva, Nina Pronina

New Formats of Mathematical Education

Maria Shabanova, Lyubov Shestakovа, Natalia Getmanskaya, Olga Bezumova, Svetlana Malysheva

New GeoGebra Features for Converged Student Projects

Tatiana Shirikova 

About Preparation of Pupils of the Arkhangelsk Region for Olympiads and Competitions in Mathematics

Diana Stefanova

Trigonometric Substitutions in Some Systems Rational Equations (Part II)

Tsvetelina Zhelyazkova, Dobrinka Boykina

The Heuristic Problems – a Means of Conducting Reflective Activity