Hey guys! I'm currently enrolled in physics 1B03 and I'm a little worried about my prof's teaching style. He does not teach concepts in class, only tells us to read the textbook. Instead, in class we do a lot of practice questions which we discuss with partners. I'm worried that when we get to the hard concepts this will not benefit me. Would you guys recommend switching into a different core? Or do you find that this type of teaching is sufficient?

Whether or not other people find this type of teaching sufficient or not is completely irrelevant. I'd recommend going to a few classes taught by the other prof and decide for yourself if it's worth switching.

I was actually planing on attending Dr Hughes core a couple of times, but there's in class quizzes and I don't really know what to do if I go to a lecture that has an in class quiz, because I'm not registered in it.

So go to both for a couple of days.

It's an extra two or three hours of your life, but it's really the only way to know for sure.

You could always go to office hours and clarify any concepts you don't understand. To be honest, when I did physics 1B03 (last term, I just finished) I found that the concepts weren't so hard (a lot of it is review like kinematics/forces/momentum/etc.) but the type of problem solving and critical thinking they make you do.

I would actually argue that going through problems is more helpful. Of course, that's just me.

Otherwise, like said above, just go to the other core and see what you think.