This is a poster that I have created and printed out in my classroom. This is a pdf that can be given to any print shop and printed out oversized! I have mine as 24" X 36". It says, "e is a number too! Give it your love" with the digits of e (only a few dozen!) at the bottom.
There are too many lame posters in classrooms that kids won't look at! Get a modern update with this one!