Hello and welcome to the forum.
Unfortunately the forum rules allow you to upload and share tiles orginali high resolution, we do not have permission to post our creations but not copyrighted.
If I can advise you scan yourself the tiles of the game, if you do not have a scanner you can take advantage of a friend or groped in a copy shop. I think a scan to 1200/2400 dpi might be enough to be able to print the tiles decent for your students.