Staribratov, Ivaylo http://orcid.org/0000-0002-2418-3679
Manolova, Nikol http://orcid.org/0000-0001-8108-4864
Article History
Received: 10 August 2023
Accepted: 24 June 2024
First Online: 8 July 2024
Declarations
:
: The data that was used for this article was part of the regular teaching process for the purpose of improving the course content and teaching methodology. According to the IRB both at the Faculty of Mathematics and Informatics at the Paisii Hilendarski University of Plovdiv and at the Academician Kiril Popov High School of Mathematics in Plovdiv, Bulgaria, such practices do not require special approval as long as researchers obtain written consent from the participants according to the ethical principles and norms as outlined in the 1964 Declaration of Helsinki.
: All participants explicitly agreed to participate in the study and to have their data analyzed and published in a journal article in the context of the study purposes.
: The authors declare that they have no conflicts of interest.