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Цветелин Андреев https://doi.org/10.53656/math2021-4-4-zap Резюме. В статията се описват дейности за изграждане на представа за симетрии. В тях участват деца на...

Silvia Gaftandzhieva, Rositsa Doneva, George Pashev, Mariya Docheva University of Plovdiv “Paisii Hilendarski” – Plovdiv (Bulgaria) https://doi.org/10.53656/math2021-4-2-lea Abstract. Nowadays, schools...

Марин Маринов, Петя Асенова Нов български университет, департамент „Информатика“ – София https://doi.org/10.53656/math2021-4-5-pred Резюме. Статията разглежда проблема за въвеждане и изграждане...

1) Dmitry Igorevich Pavlov 2), 4) Adel Victorovna Kaplan 3) Kirill Viktorovich Butarev 1), 2) State Educational Institution “School №2009”...

1) Sead Rešić, 2) Vehbi Ramaj, 3) Biljana Petković, 1) Samira Aganović 1)University of Tuzla (Bosnia and Herzegovina) 2)University of...

Hristina Dobreva Rakovski National Defence College (Bulgaria) https://doi.org/10.53656/str2021-4s-16-refra Abstract. The paper starts with differentiating between the positional and interest-based negotiation...

Mariana Borukova, Milena Kuleva National Sports Academy “Vassil Levski” (Bulgaria) https://doi.org/10.53656/str2021-4s-17-extra Abstract. In the educational system of Bulgaria, extracurricular activities...

Yoni Petrovska National Sports Academy “Vassil Levski” (Bulgaria) https://doi.org/10.53656/str2021-4s-15-invest Abstract. The professional activity of the employees in the Special Home...

Vera Zaharieva National Sports Academy “Vassil Levski” (Bulgaria) https://doi.org/10.53656/str2021-4s-14-media Abstract. This research offers a review of the online news content...

Vesela Stoycheva University of Architecture, Civil Engineering and Geodesy (Bulgaria) https://doi.org/10.53656/str2021-4s-13-extre Abstract. The problem of student survival in extreme situations...