Learn Dutch: De puber leert over seks en identiteit. - The adolescent learns about sex and identity.

While a tiener is strictly someone between 13 and 19 years old (a teenager), a puber refers to a youth going through puberty. It focuses more on the biological and psychological phase, often carrying a slight cultural connotation of being moody or rebellious. The formal word adolescent also exists in Dutch but is mostly used in scientific or medical contexts.

Is leren over the standard preposition to use here?

Yes, leren over translates perfectly to 'to learn about' a specific topic. If you wanted to say that the adolescent learned something from someone or from an experience, you would use the preposition van instead, as in leren van.

Why is it spelled seks with a 'ks' instead of an 'x'?

Dutch spelling rules typically adapt established loanwords to match Dutch phonetics. The English 'x' sound is usually written out as ks in standard Dutch, just like in the words tekst (text) or boks (box).

Since this lesson is about naarmate, how would this sentence look if we added a naarmate clause?