FRAMINGHAM, Mass.--(BUSINESS WIRE)--Staples (NASDAQ:SPLS) is helping educators save more on classroom supplies and get 110% ready for school with Teacher Appreciation Week, August 2 through 8. Most teachers spend more than $400 of their own money each year to provide supplies and materials for their classrooms. During Staples’ Teacher Appreciation Week, teachers can get an exclusive coupon that provides 40 percent back in Staples® Teacher Rewards on popular items including school supplies, teac