My school was barely 15 years ago, but we also had a thin book handed out to us in 7th grade or so that contained charts and references for pretty much everything in a very condensed form. Periodic tables, formulas for math and physics, chemical and physical attributes for a bunch of materials, ... And the entire ASCII table for some reason.

That was in Germany during the 00s and I still have that book, and three or four copies I stole over time.