As you may know, I teach math (in addition to being a graduate student). This semester, I'm teaching a "Quantitative Literacy" class -- math for students who don't need a math class, except that our technological university still requires them to take one!
This is a view inside my Big Box O'Learnin' -- filled with hands-on items which I use throughout the semester. There are a bunch, and they all serve many purposes.
A bulb, reflected.
And finally, a lovely day to sit on the waterfront.