I made this for students to use or refer to in stoichiometry problems. They typically find the idea of dimensional analysis confusing, but this makes their thinking more visible. It is based on ideas from Gary Abud: http://blog.abud.me/search?q=bca+method
If you think it might be useful go ahead and use it. It is a screenshot from a GoogleSlides presentation for my unit:
Clipping is a handy way to collect important slides you want to go back to later.