He taught astronomy at the University of Michigan from 1876 to 1888.

The intention of this game is to teach astronomy.

It was an elementary school which taught "mathematics, astronomy and the general knowledge of civilization."

As a professor he has taught astronomy, English, history, journalism, and philosophy at four universities.

He taught astronomy and earned extra money fixing scientific instruments.

He has taught physics, astronomy, and engineering on various campuses for over three decades.

He taught physics, mathematics and astronomy at the School No. 27 until 1990.

The missionaries, as teachers, taught modern geography and astronomy, among other subjects.

He taught astronomy to schoolchildren, college students, and the general public.

It also founded vocational education that taught astronomy and medicine.