"We are giving him a phone."

Translation: Dajemy mu telefon.

[Bob20020]

Dative case?

[Emwue]

Yup, this is the completely typical Polish syntax:

• „Dajemy (komu? czemu? Dative; indirect object) mu (kogo? co? Accusative; direct object) telefon.”

[akalik]

It is normal that I repeat this lesson already two months?
( Sorry for my english )

[Azcatral]

Would it change if you were to say: "We are giving him the phone"?

[Jellei]

Not really, although potentially you could say that 'the' means almost the same as 'this' and translate it as "ten telefon".