Η νηπιαγωγός έδωσε στα παιδιά κηρομπογιές και ένα μεγάλο χαρτόνι για τη ζωγραφιά τους.

Because νηπιαγωγός is a profession noun that can be used for either a man or a woman. The article tells you the gender here:

• η νηπιαγωγός = the female kindergarten teacher
• ο νηπιαγωγός = the male kindergarten teacher

So even though the noun ends in -ός, the feminine article η shows that the teacher is female.

Έδωσε is the aorist form of δίνω (to give). Here it means gave.

So:

• δίνω = I give / I am giving
• έδωσε = he/she gave

The aorist is used for a completed action in the past. In this sentence, it presents the giving as one whole event.

Στα is a contraction of σε + τα:

• σε = to
• τα = the

So:

• στα παιδιά = to the children

Modern Greek usually expresses the indirect object with σε + accusative rather than an old dative ending. So where English says gave to the children or simply gave the children, Greek says έδωσε στα παιδιά.

The structure is:

• Η νηπιαγωγός = subject, the person doing the action
• έδωσε = gave
• στα παιδιά = to the children, the recipients
• κηρομπογιές και ένα μεγάλο χαρτόνι = the things given

So the children are the receivers because they appear in the σε + article phrase: στα παιδιά.

Because Greek often leaves out the article when talking about indefinite plural things.

So:

• κηρομπογιές = crayons / some crayons

If the sentence had τις κηρομπογιές, it would sound more like the crayons, meaning specific crayons already known from the context.

Because χαρτόνι is:

• neuter
• singular

So both the article and adjective must match it:

• ένα = a, one (neuter singular)
• μεγάλο = big (neuter singular)
• χαρτόνι = cardboard sheet / poster board (neuter singular)

Greek adjectives agree with the noun in gender, number, and case, so μεγάλο matches χαρτόνι.

Because the verb to give can take:

1. a recipient
2. one or more things given

Here the recipient is:

• στα παιδιά

And the things given are:

• κηρομπογιές
• ένα μεγάλο χαρτόνι

So the teacher gave the children two kinds of items: crayons and a large sheet of cardboard.

This phrase explains the purpose of the things that were given.

• για = for
• τη ζωγραφιά τους = their drawing / their picture

So it means the crayons and cardboard were given for their drawing, in other words, for them to make a drawing.

Because Greek can use a singular noun with a plural possessor if the group is understood as sharing one thing, or if the noun is being used in a general/activity sense.

So τη ζωγραφιά τους can mean:

• their drawing as one shared drawing
• or more loosely their drawing activity / the drawing they were going to do

The plural possessor τους does not require the possessed noun to be plural.

In Modern Greek, the final -ν of forms like την is sometimes dropped before certain consonants.

So both patterns exist in Greek, but before ζ it is very common to say:

• τη ζωγραφιά

This is normal and natural. You will often see and hear this kind of shortening in everyday Greek.

Because Greek weak possessive forms like μου, σου, του, της, μας, σας, τους usually come after the noun they belong to.

So:

• η ζωγραφιά τους = their drawing
• το σπίτι μου = my house
• οι φίλοι της = her friends

This is the normal Greek pattern for possessive pronouns of this type.

Yes. Greek word order is more flexible than English word order because articles and case patterns help show each word’s role.

For example, you could also say:

• Η νηπιαγωγός έδωσε κηρομπογιές και ένα μεγάλο χαρτόνι στα παιδιά για τη ζωγραφιά τους.

That would still mean essentially the same thing. The original version puts στα παιδιά earlier, which can slightly highlight the recipients. So the chosen order is natural, but not the only possible one.