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Marchis, Iuliana; Molnár, Andrea Éva – Acta Didactica Napocensia, 2009
Communicating on the mathematical language, problem solving, and reasoning are competencies tested on international test. The aim of this research is to study how secondary school pupils do geometrical constructions, how they give mathematical argumentation and use geometrical notions in their explanations.
Descriptors: Foreign Countries, Secondary School Mathematics, Secondary School Students, Secondary School Curriculum