A teacher discusses astronomy with his Junior High School students at an inner city school.

The video introduces an upcoming visit to a planetarium at El Camino College, explaining what a planetarium is and how it functions. It also discusses the etymology of the word 'planetarium' and highlights Mr. Gustafson as a role model for students, emphasizing his role in teaching astronomy.

What is a planetarium and what purpose does it serve?

How does a planetarium work?

What can students expect to see during their visit to the planetarium?

What is the origin of the word 'planetarium'?

How does Mr. Gustafson serve as a role model for students?