How do you say good morning class in portuguese?

There are a few ways to say "good morning class" in Portuguese, depending on the formality and region:

Formal:

* Bom dia, turma! (This is the most common and neutral greeting.)

* Bom dia a todos! (Good morning to everyone!)

Informal:

* Bom dia, galera! (Good morning, guys!) - This is more common among friends or in a casual setting.

* E aí, turma! (Hey, class!) - This is a very informal greeting, used mostly by younger people.

Note:

* In Brazil, the most common greeting is "Bom dia, turma!".

* In Portugal, "Bom dia, alunos!" (Good morning, students!) is also used.

It's always a good idea to observe how the teacher you are addressing greets their class. This will help you choose the most appropriate greeting for the specific situation.