What is a teacher? A instructor is a expert who shares their understanding on a unique subject or set of matters with a team of puple in hopes of advancing their knowledge, skills, wondering or standard characters. A trainer can additionally be referred to as an educator or instructor. They provide their students the equipment to clear up issues via making use of the information and ideas they learned. I feel it is the basis of all other professions. It is the teacher who creates doctors, scientists, engineers, artist, dramatist, singer, builder and all other professionals.