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How to focus on school work
Be sure you understand your assignments.
It is nearly impossible to focus on school work that you don't understand. Before you leave school, try to ask the teacher or another student to explain any assignments with instructions that aren't clear to you.
Once you clearly understand what your teacher wants you to do, then you can begin focusing on your work. Sometimes it might be helpful to see if your school offers tutoring, especially if you find that confusion over your homework is often why you struggle to focus on it.