Help me "get" this really bad joke...

Colleges & Universities California Institute of Technology
6

<p>If you guys wanna see a kinda lame math joke, I did some graphic design jokes on two of my math teachers. One features a calculus love song that I wrote and the other has the teacher’s favorite math joke–bonus points to whoever finds and explains it.</p>

<p><a href=“http://mygwl.com/~lizzardfire/wg1.jpg[/url]”>http://mygwl.com/~lizzardfire/wg1.jpg&lt;/a&gt;
<a href=“http://mygwl.com/~lizzardfire/arupfire.jpg[/url]”>http://mygwl.com/~lizzardfire/arupfire.jpg&lt;/a&gt;&lt;/p&gt;