#The teacher did not tell you to get the cracked version of the software

If I may interpret your description literally, this is what happened:

1. The teacher showed you how to do a crack
2. The teacher told you to have the software available

Surely step 1 is unethical, and probably immoral, but it is still your choice whether you want to use the crack, or whether you decide to get the student license (which is in fact not unreasonably priced from my perspective).

In response to some comments: In my university it was not the responsibility of the university to provide resources, but students were expected to buy their own books and software.

Teachers sometimes showed us how to use the copy machine, or how to perform a crack, but it was always our choice whether to follow their example.

As a courtesy most (not all) software was made available on a few computers, but that is besides the point.

The teacher did not tell you to get the cracked version of the software

If I may interpret your description literally, this is what happened:

1. The teacher showed you how to do a crack
2. The teacher told you to have the software available

Surely step 1 is unethical, and probably immoral, but it is still your choice whether you want to use the crack, or whether you decide to get the student license (which is in fact not unreasonably priced from my perspective).

In response to some comments: In my university it was not the responsibility of the university to provide resources, but students were expected to buy their own books and software.

Teachers sometimes showed us how to use the copy machine, or how to perform a crack, but it was always our choice whether to follow their example.

As a courtesy most (not all) software was made available on a few computers, but that is besides the point.