Pictures are very universal. Cave drawings of people hunting animals were immediately understood by people who discovered them. Put in blueprints of the site layout, use atomic model images to denote where material was stored, in what, etc.
Math is also very easy to convey graphically, especially binary. You just have to include a big 'key' at the start to define your symbols. Start with "0 1 10 11" (0,1,2,3) followed by "01 + 01 = 10" (1+1=2) to give the symbols for addition and equality, then multiplication ("10 x 10 = 100"), etc. Once you have the basics it will be easy to convey everything from atomic numbers to dates.