Bury box

I suggest to put in a bury box some things that in my opinion, in the future the openers will find interesting.
 
First, a piece of chalk. Every day this kind of pencil for the board are less common because it’s been substituted by digital boards. But it’s a learning tool than connect us with our ancestors, centuries ago they draw with carbon, chalks and other rocks; it will be a shame when this technique disappear.
 
Second, I would put in the capsule a book of science, so in the future it can be possible to contrast with their learning material. Science are related of all the knowledge human beings have in that moment, besides it describes the learning method there is in use nowadays.

 
Third, a school newspaper sounds to me a good idea, it represents how are our activities now, if there is a tournament of mathematics, or a sport match, a meeting between students, advertisements of extra class, and other things very linked to the school environment. It would represent our students perfectly.