Teacher silueta 8 months 5 Teacher silueta 8 months 4 Schoolboy student silueta about 1 year 6 Nurse silueta about 1 year 1 Male Teacher silueta about 1 year 2 Professor silueta about 1 year 2 Woman Teacher silueta about 1 year 3 (Gwen) Office Lady is Making a Presentation silueta about 1 year 0 Teacher Man silueta about 1 year 2 Biology teacher silueta about 1 year 13 Medical Doctor Man silueta about 1 year 1 (Joshua) Medical Doctor is Giving a Warning silueta about 1 year 0 Medical Doctor is Presenting at the White Board silueta about 1 year 2 Medical Doctor Man silueta about 1 year 1 Businessman is Explaining silueta about 1 year 0