teaching - Techniques for good board handwriting

I'm a math TA and I find that my most consistent comment for improvement involved my board handwriting. Anybody have some tips or techniques I can use to make things a little neater on the board?

There are, of course, time constraints with teaching any course, so I don't want to simply write more slowly in order to assist in writing more neatly. Thankfully in a math course much of what I write is symbols which are easier to (borrowing a typography term) kern than sentences, but I still feel like I need to vastly improve my handwriting on a board if I plan on teaching for any length of time.

This is a sample of my handwriting:

Any advice would be greatly appreciated. Thank you!

EDIT: After checking the room in which I'm assigned to teach this semester, it turns out I do actually have a whiteboard instead of a chalkboard. Like I commented below somewhere, I'm sure 90% of the answers mentioned (those not expressly about chalk, anyway) will be completely cross-transferable and I'll try to make them all work. Thanks again for all the great answers!

Answer

I have struggled with this too. Two things that I find help are:

1. Write much bigger than you think you should. It's easier to be neater with bigger letters. You can fit less on a board, but honestly that's generally a good thing.


2. Move your body along with your writing as you go. My writing gets worse the farther my hand is from my center of mass, and tends to trail downward too.