We discussed mass, volume, density, solids, liquids and gases. We covered unit conversions and significant figures.
I have been through that unit more times than I can count. Yet I have never come away with a feeling that my kids have understood a word I have said*. This feeling is always reinforced a few weeks (days) (hours?) later when density is mentioned again. You know the look kids give you that makes you want to check to be sure your hair hasn't turned purple? I get that a lot.
This feels different. Granted, I haven't tried it out on actual teenagers, but I just get a sense that this could work. It could possibly be that I came away with a better understanding. I minored in chemistry. I have taught this for years. I KNOW this stuff. But now I feel like I can truly TEACH it. And maybe, just maybe, my kids will be able to LEARN it.
*Truth be told, they probably didn't.