Take away the litter. A Carnegie Mellon University study20 observed that students ended up more distracted, spent more time off activity, and learned less in a very cluttered classroom vs. if the litter was removed. Clean up up your setting to declutter your valuable brainpower. A 2016 study11 displays evidence https://medium.com/@noetic789/%D8%AF%D9%84%D9%8A%D9%84-%D8%B4%D8%A7%D9%85%D9%84-%D9%84%D9%84%D8%AA%D8%B3%D9%88%D9%82-%D8%A7%D9%84%D9%88%D8%A7%D8%B9%D9%8A-%D9%84%D9%84%D8%A3%D8%B2%D9%8A%D8%A7%D8%A1-90cade0ed9e9