Attention is the selection between stimuli from our external and internal environment. What we perceive from the flood of stimuli is determined by attention.What we focus on is influenced by many factors. Our daily habits, our diet, our mood, different life situations change its intensity. Selecting information is a challenge even for an adult. How do children fight with this?What does it feel like when there is confusion in the system? How does the attention of a child with ADHD work? These and similar questions are the issues I am looking for answers to in my thesis. In which I also explain how they are affected by the digital world and what tools are used to capture their attention in the classroom.