La profesora enseña en el salón de clase.
Since we are conjugating in the Present Indicative: indicates things that are facts or certainties or that are a part of the speaker’s experience.
In it's regular form for enseñar we would conjugate it like so:
Yo Form: Enseño
Tú Form: Enseñas
Usted, Ella, Ello Form: Enseña
Nosotros Form: Enseñamos
Vosotros Form: Enseñáis
Ustedes, Ellas, Ellos: Enseñan.
1.transport to get you to the study institution or work
2. money to pay for school
3. the distance from your house to the school or place of work
D) The Oxford English Dictionary
Dictionaries include word origins.