"Dad is talking to my teacher."

Translation: Baba anazungumza na mwalimu wangu.

[designedforx]

"Baba anaongelea na mwalimu wangu"
A valid alternative? If not, what's the difference between kuongelea and kuzungumza?

[machieng]

'ongelea' is talk about, 'zungumza' is talk to. A synonym for 'ongelea' would be 'zungumzia'

P.S. 'Baba anaongelea mwalimu wangu' - Dad is talking about my teacher

[designedforx]

Thank you! And then the difference between Kuongelea and Kuongea?

[CynW]

Kuongea is the same as kuzungumza. They mean the same thing - to speak