Free poster to celebrate Teachers' Day. TeachersDay.com has many more resources like this - all FREE. Teacher's Day is a day designed to celebrate educators and thank them for their investment in the lives of our youth. The average teacher works nearly eleven hours each day. In addition to the seven hours they spend teaching, educators spend countless hours planning lessons, grading papers, communicating with parents, and attending meetings and training seminars. This doesn’t count the additional time they spend caring for our students’ emotional wellbeing both inside and outside of the classroom. A teacher’s job is truly never done!