Research in the field of mathematics teaching implies multi- and interdisciplinarity. We believe that the lectures, discussions and experience exchange between Croatian and international participants of the Mathematics and Children meetings (scientists from Slovenia, Bosnia and Herzegovina, Austria, Hungary, Serbia) will initiate and intensify scientific cooperation in the field of mathematics teaching on the international level. Accompanying this event, we would also like to initiate doctoral studies in the field of mathematics teaching in Croatia following the examples from Europe and worldwide. This monograph contains five chapters: (1) Partnerships of Civil Society, Faculties and Schools in Raising the Teaching Quality; (2) About Learning Outcomes in Teaching Mathematics to Pupils; (3) About Learning Outcomes in Teaching Mathematics to Students; (4) Impact of Learning and Teaching Strategies on Learning Outcomes; and (5) Discussion About Studies of Mathematics and Teaching Mathematics. Seventeen papers comprise this volume. They are: (1) Civil Society Organizations as a Partner in Mathematical Education (Sanja Rukavina); (2) Mathematics Teachers as Researchers of their Teaching and Pupils' Learning (Tatjana Hodnik Cadez); (3) Mathematics and Informatics in Extracurricular Activities Chosen by Pupils and Offered by their Teachers (Margita Pavlekovic,; Ana Mirkovic Mogus; and Diana Moslavac); (4) Mathematics Learning Built on Pictures ((Katalin Munkacsy); (5) Through Games into the World of Probability (Mara Cotic; and Darjo Felda); (6) Producing Plane Figures and Selecting Plane Figures in the Fourth Class of Lower Primary School (Ibolya Szilagyine Szinger); (7) The Concept of Zero Among 7-12-Years-Old Children (Eva Kopasz); (8) Mathematical Requirements in PISA Assessment (Dubravka Glasnovic Gracin); (9) Learning Outcomes in Mathematics: Case Study of Implementation and Evaluation by Use of E-Learning (Blazenka Divjak; and Mirela Ostroski); (10) Mathematic Competencies Of Students Interested In Teaching Studies --An Analysis Of An Entrance Exam In Mathematics (Irena Misurac Zorica; and Marinko Pejic); (11) Investigation of Spatial Ability in the Population Of Students of Mathematics Teacher Education Programmes at The Department Of Mathematics, University Of Zagreb (Aleksandra Cizmesija; and Zeljka Milin Sipus); (12) Application Of Basic Mathematical Concepts And Skills in Physics (Zeljka Milin Sipus; and Maja Planinic); (13) A Number Theoretical Game with Chess Figures (Emil Molnar); (14) Amusing Mathematics in the Teaching Of Mathematics (Zdravko Kurnik); (15) Metacognition And Self-Regulation in Learning and Teaching Mathematics (Ivan Mrkonjic; Velimir Topolovec; and Marija Marinovic); (16) "Shall We Study Mathematics?"-- Fifty Years After (About the 1959 Article of Academic S. Bilinski) (Mirko Polonijo); and (17) Math Teachers' Perceptions Of Mathematics Education in Elementary and Secondary Schools in Croatia--Results of an Empirical Research (Branislava Baranovic; and Marina Stibric). [Individual papers contain references, tables, figures, and pictures. Papers are presented in both English and Croatian.]