Access data will be anonymized, each school will have its own course in LMS Moodle. All of the pupils of the entered class will participate in the competition. Starting every Monday in November, it will be possible to complete the tests of the respective round during the week, at a predetermined time. Each registered class will report in advance the exact time when the tests will be completed, and the tests will be made available for that time. Participation is possible via a computer, tablet, or a smartphone. The activity takes no more than 15 minutes of lesson time. A time limit will be set for the test.