<p>I'm taking 20B, and I'm wondering in general if the sections for Math classes are mandatory. I'm having daycare issues and a lot could be solved if I knew whether they were or not. Thanks!</p>
<p>no for attendance, but [typically] yes to hand in homework. check with your professor.</p>
<p>didnt go to my math section at all. just hand in homework to 6th floor APM dropbox. should be fine :)</p>
<p>Most math classes at UCSD section is not mandatory.</p>