Brass is a buttery yellow alloy of zinc and copper which has been manufactured for thousands of years in many parts of the world.
A teacher is usually issued a contract stating that they work 180 days a year, 7 hours a day (including a 30 minute lunch and 30 minute break) BUT almost any good teacher puts â¦ in an additional 2-4 hours daily plus several hours at home for FREE just striving for students success.
A primary school teacher will spend on average 19 hours a week of timetabled teaching. It's similar for secondary school classroom teachers, averaging 19.6 hours. Secondary school head teachers have much lower levels of classroom time, at 2.8 hours per week.