The song "Z internetem świat jest bliski" (Internet makes the world closer), along with the music video and the lesson plan, represents the latest educational materials designed for children aged 4-7. These materials are aimed at promoting digital hygiene among the youngest. The protagonists of the music video are Mr. File and Mr. Folder, characters who introduce children to the virtual world and explain its basic concepts. They teach children good practices for using screen devices, such as putting them away when sitting down to eat or going to the bathroom, as well as finding time for physical activity.

This material was prepared as part of the "Plik i Folder" (Mr. File and Mr. Folder) project, which is the result of collaboration between the National Research Institute NASK and the Artistic Group Zygzaki.