Life can be easier when you have the adequate tools: plastic files, staplers, adhesive tape rolls, propelling pencils, rubbers, pencils, pencil-sharpeners, blocs, notepads and all the stuff. In school a teacher needs graded readers, paper clips, A4 papers, ball pens and perhaps a couple of moleskines.
There will be books, broadly speaking, that a good teacher should consult continuosly such as dictionaries (more than one), grammar books, a Thesaurus, textbooks, novels, magazines, newspapers, etcetera.
If you are a lucky student, you will come across a teacher who loves doing things the right way and he will teach you well. If you are more than lucky, your teacher will be one of the kind who stamps the date on your testing paper or exercise books by using a rubber stamp date.
There are plenty of things in a teacher´s desk: ball pens, diaries, dossiers, photocopies, press cuttings and rotrings, handbooks, folders, pencil cases and rubber bands, marks lists.
Yes, I can say I am happy with the classical stuff. I fancy especially those coloured slips of paper that teachers call post-its or sticky notes. These are very useful to mark a page in a book or note down any to-do-later task.