What is the Educator Expense deduction?

If you are a teacher, instructor, counselor, or aide that works at least 900 hours in a school that provides kindergarten through 12th grade education, you can deduct up to $250 of any unreimbursed expenses for books, supplies, equipment, etc. that you use in the classroom as an above-the-line deduction on your tax return. You may be able to take the excess amounts (above $250) of unreimbursed expenses as an itemized deduction on Schedule A.