La profesora me recomendó una libreta nueva porque la mía ya está casi llena.

The teacher recommended a new notebook to me because mine is already almost full.

Breakdown of La profesora me recomendó una libreta nueva porque la mía ya está casi llena.

• una: a
• me: me
• estar: to be
• nuevo: new

Questions & Answers about La profesora me recomendó una libreta nueva porque la mía ya está casi llena.

Why is it la profesora and not just profesora?

Because here we are talking about a specific teacher: the teacher. In Spanish, it is very common to use the definite article (el, la, los, las) with nouns when referring to a specific person or thing.

So:

• La profesora = the teacher
• Una profesora = a teacher

A useful contrast:

• Es profesora = She is a teacher
  Here, after ser, professions usually appear without an article.
• La profesora me recomendó... = The teacher recommended to me...
  Here, la profesora is the subject, referring to a particular teacher.

What does me do in this sentence?