"Setidaknya dia akan menjadi guru yang pintar."

Translation: At least he will be a smart teacher.

[KyrieDomineJesus]

Shouldn't "akan menjadi" rather be translated with "become" instead of "be"?

[UpzahwvW]

technically, yes, /menjadi/ means "become". It still works in context, though. Indonesian is a bit looser about such things.

[Sundoro1]

"Dia" is missing from the listening lesson.

[Speedy12846]

The dia is not missing. The dia is just connected to akan.

[Brian260733]

It might not be missing, but wow, is this guy hard to understand when he gets speaking fast!

[Chuck169]

Will become a smart teacher = will be a smart teacher

[mapmanic]

Not really. There are many connotations not shared by the two statements. "Will become" brings to mind the process by which he will achieve his teaching ability, whereas "will be" could indicate that there might not even be any change in the fellow except that he might be considered smart for a particular teaching position.