First Name =Ilmars Last Name =Kangro Title =Mg math Institution =Rezekne Higher Education Institution Street Address =Atbrivosanas aleja 90 City =Rezekne State =Latvia Zip Code =LV 4601 Telephone =4625150 FAX =4625901 E-mail =kangro@ru.lv URL = Title of talk=Methodical Approaches to the Acquisition and Application of Mathematical Concepts