Learn Hardcore Spanish (Latin America): Mi profesor dice que cada equivocación es una oportunidad para aprender. - My teacher says that every mistake is an opportunity to learn.

Mi profesor dice que cada equivocación es una oportunidad para aprender.

My teacher says that every mistake is an opportunity to learn.

Breakdown of Mi profesor dice que cada equivocación es una oportunidad para aprender.

Questions & Answers about Mi profesor dice que cada equivocación es una oportunidad para aprender.

Why is there no article before profesor? Why do we say mi profesor, not el mi profesor or something like that?

In Spanish, you normally don’t use an article with a possessive adjective.

mi profesor = my teacher
el profesor = the teacher
el mi profesor ❌ (incorrect in modern standard Spanish)

The possessive (mi, tu, su, nuestro, etc.) already shows that we are talking about a specific person, so adding el / la is not needed and sounds wrong in this context.

How would the sentence change if the teacher is a woman? Do I just change profesor to profesora?

Yes. You change the noun to the feminine form:

Mi profesor dice que… = My (male) teacher says that…
Mi profesora dice que… = My (female) teacher says that…

Nothing else in the sentence needs to change, because profesor / profesora doesn’t affect the rest of the words here.

Why do we need que after dice? In English we can often drop that in “My teacher says (that) every mistake…”.