Q&A for How to Sharpen Your Pencil at School Without a Sharpener

Take the screw out of the sharpener that is holding the blade. Then, take the blade and some semi-coarse sandpaper and rub the blade side against the sand paper and repeat with the other side.

If it's an old nail file that you're not planning to use again, you don't need to clean it off. But if you do plan on using it again, you should probably clean it off after you've used it for your pencil.

Try to carry extra pencils with you so this doesn't happen. If you do run out of pencils and you have nothing to write with during your test, just let the teacher know. He/she will either give you a pencil or ask the class if anyone has an extra they could loan you.

No; not only is it unsanitary, you risk damage to either.

Think of this ahead of time and come with multiple pencils. If you somehow forget, ask one of the people sitting next to you for an extra pencil.

You probably shouldn't, but you could if you were really desperate. Is there a screw on your desk? You might want to use that instead.