Target group: studeNts With regard to the students' point of view, the most difficult Maths subjects in learning online were: ● Geometric concepts ● Functions ● Experience with random events We can note that, as for the topics hardest to teach online, Geometric concepts was considered by 83,3% of teachers, the most difficult topic for students to learn online, especially regarding Polygons and Circle. With regards to Functions, instead, they found the topic Reading graphs and Coordinate system, coordinate axes (abscissa, ordinate), grid and coordinates of given points very challenging to teach online. Someone rated it difficult alsoDefinition of the linear function y = kx + n and drawing it. Regarding Experience with random events, instead, teachers had some difficulties with Collection, editing and analysis of the results of the experiment and Observation and prediction of the events 18