Learn Italian: Qualche studente impara la lingua facilmente. - Some students learn the language easily.

To form an adverb, we usually add -mente to the feminine form of an adjective. However, for adjectives ending in -le or -re (like facile), we drop the final -e first. So, facile becomes facil-, and then we add -mente to get facilmente.

Why does the sentence use the singular studente when the English translation says "some students"?

The word qualche (meaning "some" or "a few") is a special word in Italian: it is always followed by a singular noun, even though the overall meaning is plural. That is why we use the singular studente instead of the plural studenti.

Since the meaning is plural, shouldn't the verb be imparano (they learn)?

No, the verb must always match the grammar of the subject. Because qualche makes the subject singular (qualche studente), the verb must also be in the singular "he/she/it" form, which is impara.

Could I write this sentence using plural words instead?

Yes! You can use alcuni, which also means "some" but works with plural nouns and plural verbs. You could say Alcuni studenti imparano la lingua facilmente, and it would mean exactly the same thing.