Στην ενισχυτική διδασκαλία συμμετέχει σύμβουλος εκπαίδευσης.

Στην is the contracted form of σε την.

• σε = in / at / to
• την = the (feminine singular, accusative)

So στην ενισχυτική διδασκαλία means in the remedial/support teaching.

In modern Greek, σε + definite article is very often written and said as one word:

• σε + τον = στον
• σε + τη(ν) = στη / στην
• σε + το = στο

Here, στην is used because the next word begins with a vowel sound, so the -ν is kept.

Ενισχυτική is an adjective modifying διδασκαλία.

• διδασκαλία = teaching / instruction
• ενισχυτική = supportive / remedial / reinforcing

Grammatically, ενισχυτική agrees with διδασκαλία in:

• gender: feminine
• number: singular
• case: accusative here, because it follows σε

So the phrase literally means something like supportive teaching or remedial instruction.

Yes. After the preposition σε, Greek normally uses the accusative case.

So:

• η διδασκαλία = the teaching/instruction (nominative)
• τη(ν) διδασκαλία = the teaching/instruction (accusative)

That is why the full phrase is:

• στην ενισχυτική διδασκαλία

Even though English uses in the, Greek uses σε + accusative here.

Συμμετέχει is the 3rd person singular present tense of the verb συμμετέχω, meaning to participate / take part.

So συμμετέχει means:

• he/she/it participates
• takes part

In this sentence, the subject is σύμβουλος εκπαίδευσης, which is singular, so the verb is singular too.

Greek word order is much more flexible than English word order.

So both of these are possible:

• Στην ενισχυτική διδασκαλία συμμετέχει σύμβουλος εκπαίδευσης.
• Σύμβουλος εκπαίδευσης συμμετέχει στην ενισχυτική διδασκαλία.

Putting συμμετέχει before the subject is natural Greek and often helps the sentence flow better or place emphasis slightly differently. English usually needs a clearer subject-verb order, but Greek does not.

Greek can omit the article when talking about someone in a general or role-based way.

So σύμβουλος εκπαίδευσης means an education advisor / education consultant.

If you said ο σύμβουλος εκπαίδευσης, that would usually mean the education advisor or a specific known person.

Here, without the article, the phrase sounds more indefinite: an education advisor participates.

Σύμβουλος is in the nominative singular because it is the subject of the sentence.

The verb is συμμετέχει, and the person doing that action is σύμβουλος εκπαίδευσης.

So:

• σύμβουλος = advisor / consultant
• nominative singular masculine

Even though it comes after the verb, it is still the subject.

Εκπαίδευσης is the genitive singular of εκπαίδευση.

• η εκπαίδευση = education
• της εκπαίδευσης = of education

In σύμβουλος εκπαίδευσης, the genitive shows a relationship similar to English of:

• σύμβουλος εκπαίδευσης = advisor of education
• more naturally in English: education advisor or education consultant

So this is a very common Greek structure: noun + genitive noun.

Not exactly by grammar alone.

Grammatically, σύμβουλος εκπαίδευσης means something like:

• education advisor
• education consultant
• advisor in education

Whether it should be translated as school counselor depends on the real-world context, not just the Greek grammar. A school counselor in English may suggest a different institutional role.

So the Greek phrase itself is broader and more literal than school counselor.

A rough pronunciation guide is:

Stin eni-shee-tee-KEE dida-ska-LEE-a sim-me-TE-chee SOOM-vou-los ek-pef-thee-sees

A few useful notes:

• στην sounds like stin
• χ in συμμετέχει is a rough sound, like the ch in Scottish loch or German Bach
• ευ in σύμβουλος is pronounced like ev or ef depending on the next sound; here it sounds like v
• Greek stress matters, so notice the accented syllables:
  • ενισχυτική
  • διδασκαλία
  • συμμετέχει
  • σύμβουλος
  • εκπαίδευσης

They are very close in meaning.

• συμμετέχει = participates / takes part
• παίρνει μέρος = takes part

In many contexts, they are interchangeable. But συμμετέχει is often a little more formal or institutional in tone, which fits well in a sentence about education.

So this sentence sounds natural and slightly formal, which is probably why συμμετέχει is used.