How does the "human capital model" and "labor market discrimination model" explain the gender wage gap?

I’m not by any means trying to get someone to do my homework for me, just trying to gain a better understanding on the matter for an exam.

I already know the gender wage gap, I’m just having trouble figuring out how those two models relate to it.

I lost my book so if anyone knows about this stuff I’d appreciate their help, any help. Thanks a ton.