Chroustová, K., Bílek, M., & Šorgo, A. (2015). DEVELOPMENT OF THE RESEARCH TOOL TO IDENTIFY FACTORS AFFECTING THE USE OF CHEMISTRY EDUCATIONAL SOFTWARE. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 68, Discontinuous. presented at the December/2015. doi:https://doi.org/10.33225/pec/15.68.06

Dahl, M., & Karlsudd, P. (2015). LEISURE-TIME TEACHERS IN A CHANGED PROFESSION. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 68, Discontinuous. presented at the December/2015. doi:https://doi.org/10.33225/pec/15.68.22

Maruszewska, E. W., Szewieczek, A., & Strojek-Filus, M. (2015). TRUTH, FAITHFULLNESS AND RELIABILITY VAGUENESS IN THE ACCOUNTING THEORY AS A CHALLENGE FOR ACCOUNTING TEACHERS. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 68, Discontinuous. presented at the December/2015. doi:https://doi.org/10.33225/pec/15.68.36

Molinari, A. (2015). DESIGNING LEARNING OBJECTS FOR ITALIAN PUBLIC ADMINISTRATION: A CASE STUDY. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 68, Discontinuous. presented at the December/2015. doi:https://doi.org/10.33225/pec/15.68.52

Nascimento, M. G., Alves, G. N. G., & Marco Antonio Bueno Filho. (2015). CHEMICAL CONCEPTS IN MOTION: THE ROLE OF COLLECTIVE SCHEMES ON THE LEARNING ABOUT INTERMOLECULAR INTERACTIONS. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 68, Discontinuous. presented at the December/2015. doi:https://doi.org/10.33225/pec/15.68.64

dos Santos, D. M. B., & dos da Silva, C. A. S. (2015). EVALUATION OF STUDENTS’ GENERAL PERCEPTIONS OF PROBLEM-BASED LEARNING IN A COMPUTER ENGINEERING PROGRAM IN BRAZIL. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 68, Discontinuous. presented at the December/2015. doi:https://doi.org/10.33225/pec/15.68.74

Veigel, M. (2015). FORMATION OF YOUTH WORKER PROFESSIONALISM: PROBLEMS IN ESTONIA. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 68, Discontinuous. presented at the December/2015. doi:https://doi.org/10.33225/pec/15.68.84

Board, E. (2015). COVER PAGE. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 68(1), Discontinuous. presented at the December/2015. Retrieved from http://oaji.net/articles/2021/457-1622441589.pdf

Board, E. (2015). CONTENTS. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 68(1), Discontinuous. presented at the December/2015. Retrieved from http://oaji.net/articles/2021/457-1622441628.pdf