Experience with e-learning in Teaching Combinatorics and Data Processing

Young people widely use their mobile phones, tablets and notebooks. So it is natural to use modern technologies also in teaching mathematics. Blended learning represents a combination of e-learning and face-to-face instruction. In the ISET 2019 conference in Hradec Králové, we presented that blended learning had improved the results of our students in Combinatorics and Data Processing. In this paper, we continue the research and compare the results of students from three academic years. Moreover, we compare the results of external students who have to be taught only by e-learning due to restrictions caused by COVID-19.