La professora ha compartit una cançó a la pàgina de la classe.

Because Catalan is using the present perfect here:

• ha = has (from haver, the auxiliary verb)
• compartit = shared (past participle)

So ha compartit literally works like has shared in English.

A very important point for English speakers: Catalan forms this tense with haver, not with a verb meaning to have/possess in the ordinary sense.

It comes from haver, not tenir.

• haver is the auxiliary used to form compound tenses
• tenir usually means to have in the sense of possession

So:

• La professora ha compartit... = The teacher has shared...
• not La professora té compartit...

This is one of the most useful distinctions to learn early.

Catalan often uses the definite article where English might not focus on it as much.

• la professora = the teacher
• professora by itself would be teacher in a more general or dictionary-like sense

In ordinary sentences, Catalan normally includes the article with nouns like this.

Also, professora is the feminine form:

• el professor = the male teacher
• la professora = the female teacher

Because cançó is a feminine singular noun, so it takes the feminine singular indefinite article una.

• una cançó = a song
• masculine nouns would usually take un

For example:

• un llibre = a book
• una cançó = a song

So the article must match the noun’s gender and number.

The ç is called ce trencada in Catalan.

It tells you the c is pronounced like s before a, o, or u.

So in cançó, the ç gives an s sound:

• cançó sounds roughly like kan-SO

Without the cedilla, the pronunciation would be different or spelling would not follow normal Catalan rules.

The accents help show stress and sometimes vowel quality.

• cançó has the stress on the last syllable
• pàgina has the stress on the first syllable

So the accents help you pronounce the words correctly.

For an English speaker, it is useful to think of them as pronunciation guides that are also part of the correct spelling.

Yes, a often means to, but it can also cover meanings that English expresses with on, at, or in, depending on context.

Here:

• a la pàgina de la classe means something like on the class page

So Catalan uses a where English prefers on.

This is very common with locations, websites, pages, and similar contexts. It is best to learn the whole phrase:

• compartir alguna cosa a una pàgina = to share something on a page

Catalan usually expresses this relationship with de:

• la pàgina de la classe = the page of the class / the class page

English often stacks nouns together:

• class page
• school website
• student group

Catalan much more often uses de:

• la pàgina de la classe
• el web de l’escola
• el grup dels estudiants

So de is a very common way to show possession or association.

Because after haver, the past participle normally does not agree with the object.

So:

• ha compartit una cançó
• ha compartit dues cançons

In both cases, compartit stays the same.

This is different from some other Romance-language patterns learners may have seen. In standard Catalan compound tenses with haver, the participle is usually invariable.

The given order is the most natural neutral order:

• La professora = subject
• ha compartit = verb
• una cançó = object
• a la pàgina de la classe = place/location

So the basic structure is:

Subject + verb + object + complement

Catalan word order is somewhat flexible, but changing it usually changes the emphasis. For example, moving una cançó or a la pàgina de la classe could sound more marked or emphatic.

For a learner, the sentence as given is the safest and most natural pattern to copy.

A common simple past equivalent would be:

• La professora va compartir una cançó a la pàgina de la classe.

This uses the periphrastic past, which is extremely common in spoken Catalan:

• va compartir = shared

So now you can compare:

• ha compartit = has shared
• va compartir = shared

Both are very common, but they are used with slightly different time perspectives depending on context and dialectal preference.

A rough English-friendly pronunciation would be:

lah proh-feh-SOH-rah ah kum-par-TEET OO-nah kun-SOH ah lah PAH-zhee-nah duh lah KLAH-suh

A few notes:

• professora has stress on -so-
• compartit has stress on the last syllable
• cançó has stress on the last syllable
• pàgina has stress on the first syllable
• classe ends with a clear s sound

This is only an approximation, but it can help you get started.