Ukwoma, S. C., & Ngulube, P. (2021). REVIEW OF THE STATE OF METHODOLOGICAL TRENDS IN OPEN AND DISTANCE LEARNING LITERATURE 2009-2018. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 79(2), Continuous. presented at the April/2021. doi:https://doi.org/10.33225/pec/21.79.296

Chang, C. C., & Silalahi, S. M. (2017). A REVIEW AND CONTENT ANALYSIS OF MATHEMATICS TEXTBOOKS IN EDUCATIONAL RESEARCH. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 75(3), Continuous. presented at the June/2017. doi:https://doi.org/10.33225/pec/17.75.235

Bureš, V., Griffin, D., Hackett, D., Kročitý, P., & Kubička, E. (2011). RETHINKING OF KNOWLEDGE MANAGEMENT INTRODUCTION AT TEACHING UNIVERSITIES: THE FRAMEWORK DEVELOPMENT. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 32. presented at the July/2011. doi:https://doi.org/10.33225/pec/11.32.33

Mezhennaya, N. M., & Pugachev, O. V. (2018). ON THE RESULTS OF USING INTERACTIVE EDUCATION METHODS IN TEACHING PROBABILITY THEORY. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 76(5), Continuous. presented at the October/2018. doi:https://doi.org/10.33225/pec/18.76.678

Mumba, F., Mbewe, S., Sasser, S., Chabalengula, V. M., & Wilson-Miles, E. (2009). RESIDENT SCIENTISTS’ CURRICULUM AND INSTRUCTIONAL DECISIONS FOR HIGH SCHOOL CLASSROOMS. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 17. presented at the November/2009. Retrieved from http://oaji.net/articles/2014/457-1399915014.pdf

Mumba, F., Chabalengula, V. M., Wilson, E., Carver, J., & Hunter, W. (2009). RESIDENT SCIENTISTS’ CONCEPTIONS OF SCIENCE TEACHING. Problems of Education in the 21st Century , Problems of Education in the 21st Century , 11. presented at the May/2009. Retrieved from http://oaji.net/articles/2014/457-1392408821.pdf

Nezvalová, D. (2011). RESEARCHING SCIENCE TEACHER PEDAGOGICAL CONTENT KNOWLEDGE. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 35. presented at the November/2011. Retrieved from http://journals.indexcopernicus.com/abstract.php?icid=968808

Alexander Cely Rodríguez. (2011). RESEARCHING SCHOOL GEOGRAPHY: EXPERIENCES AND POSSIBILITIES. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 27. presented at the March/2011. Retrieved from https://journals.indexcopernicus.com/search/article?articleId=2593991

Baptista, M. (2014). RESEARCHING PRACTICE AND COLLABORATION AS A MEANS TO PROMOTE INQUIRY IN SCIENCE TEACHING. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 59, Discontinuous. presented at the April/2014. doi:https://doi.org/10.33225/pec/14.59.05

Mrázová, V., & Müller, L. (2010). RESEARCH ON USING THE INTERNET IN CHEMISTRY TEACHING. Problems of Education in the 21st Century , Problems of Education in the 21st Century , 24. presented at the October/2010. Retrieved from https://journals.indexcopernicus.com/search/article?articleId=2594539

Holubová, R. (2008). RESEARCH OF NEW FORMS OF COMPETITIONS IN FOSTERING THE CREATIVITY OF YOUTH. Problems of Education in the 21st Century , Problems of Education in the 21st Century , 6. presented at the May/2008. Retrieved from http://oaji.net/articles/2014/457-1392233509.pdf

Benes, P., Mudrak, D., Prochazka, J., Rambousek, V., & Stipek, J. (2008). RESEARCH OF ICT EDUCATION IN THE CZECH REPUBLIC. Problems of Education in the 21st Century , Problems of Education in the 21st Century , 5. presented at the April/2008. Retrieved from http://oaji.net/articles/2014/457-1392223482.pdf

Brevik, L. M. (2013). RESEARCH ETHICS: AN INVESTIGATION INTO WHY SCHOOL LEADERS AGREE OR REFUSE TO PARTICIPATE IN EDUCATIONAL RESEARCH. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 52. presented at the March/2013. doi:https://doi.org/10.33225/pec/13.52.07

Llanos, V. C., & Otero, M. R. (2013). THE RESEARCH AND STUDY PATHS IN THE SECONDARY SCHOOL: THE CASE OF THE POLYNOMIAL FUNCTIONS OF THE SECOND DEGREE. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 52. presented at the March/2013. doi:https://doi.org/10.33225/pec/13.52.60

Mihelač, L. (2008). THE REQUESTS OF THE MULTICULTURAL SOCIETY ON TRANSFORMATION OF A CONTEMPORARY MUSIC TEACHER. Problems of Education in the 21st Century , Problems of Education in the 21st Century , 4. presented at the February/2008. Retrieved from http://oaji.net/articles/2014/457-1392222598.pdf

McCloughlin, T. J. J., & Matthews, P. S. C. (2012). REPERTORY GRID ANALYSIS AND CONCEPT MAPPING: PROBLEMS AND ISSUES. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 48. presented at the November/2012. doi:https://doi.org/10.33225/pec/12.48.91

Vronskaya, N. (2008). REORGANIZATION OF THE SUBJECT HOUSEKEEPING AND TECHNOLOGIES 7 CLASSES AS THE OPPORTUNITY OF INTEGRATION ICT IN EDUCATION. Problems of Education in the 21st Century , Problems of Education in the 21st Century , 5. presented at the April/2008. Retrieved from http://oaji.net/articles/2014/457-1392224296.pdf

Látal, F., & Říha, J. (2009). REMOTELY CONTROLLED EXPERIMENT: COMPARISON OF VOLT-AMPERE CHARACTERISTICS BETWEEN INCANDESCENT AND ENERGY SAVING LIGHT BULB. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 17. presented at the November/2009. Retrieved from http://oaji.net/articles/2014/457-1399914853.pdf

Látal, F. (2011). REMOTE TEACHING LABORATORIES IN PHYSICS LESSONS - ATTITUDES OF STUDENTS AND TEACHERS TO THE REMOTELY CONTROLLED EXPERIMENTS. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 37. presented at the December/2011. doi:https://doi.org/10.33225/pec/11.37.83

Guseva, S., Dombrovskis, V., & Murasovs, V. (2011). REMEDIAL WORK AS A MEANS OF DEVELOPING POSITIVE LEARNING MOTIVATION OF ADOLESCENTS. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 29. presented at the May/2011. Retrieved from https://oaji.net/articles/2014/457-1405178509.pdf

Ogbonnaya, U. I. (2019). THE RELIABILITY OF STUDENTS’ EVALUATION OF TEACHING AT SECONDARY SCHOOL LEVEL. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 77(1), Continuous. presented at the February/2019. doi:https://doi.org/10.33225/pec/19.77.97

Nogueira, K. S. C., & Fernandez, C. (2018). THE RELIABILITY OF AN INSTRUMENT TO MEASURE TEACHER KNOWLEDGE FROM THE PERSPECTIVE OF LEARNERS IN THE CONTEXT OF PIBID. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 76(1), Continuous. presented at the February/2018. doi:https://doi.org/10.33225/pec/18.76.69

Ssegantebuka, J. (2017). THE RELEVANCE OF THE VISUAL ARTS CURRICULUM IN THE PREPARATION OF PRE-SERVICE VISUAL ARTS TEACHERS IN UGANDA. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 75(4), Continuous. presented at the August/2017. doi:https://doi.org/10.33225/pec/17.75.394

Piht, S., Lehiste, P., Raus, R., & Lazarev, M. (2012). THE RELEVANCE OF EVOCATION AND REFLECTION CARDS IN THE LEARNING PROCESS. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 41. presented at the April/2012. doi:https://doi.org/10.33225/pec/12.41.61

Šapkova, A. (2014). THE RELATIONSHIPS BETWEEN THE TRADITIONAL BELIEFS AND PRACTICE OF MATHEMATICS TEACHERS AND THEIR STUDENTS’ ACHIEVEMENTS IN DOING MATHEMATICS TASKS. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 58, Discontinuous. presented at the March/2014. doi:https://doi.org/10.33225/pec/14.58.127