Thin Layer Chromatography

This week my part-time teaching job has felt a bit like a full-time teaching job. No complaints about that at all, it just means that the only thing I've really sketched this week is ideas for ways to explain the concept of thin layer chromatography to my organic chemistry students. No perspective, no shading, just trying to use simple images to make a complicated subject easier to wrap their minds around. Good thing my students are bright.