Here's a link to a specific page on the districtgov.org web site which explains the what the bond is for, how the cost is determined, how you pay it, etc. Hopefully it will answer some of your questions. By the way, you'll notice it's for district 7 which is where I live and most of the new building is happening.
http://www.districtgov.org/slcdd/you...asp?district=7
Check out other areas of this web site as well. It has a lot of valuable information regarding TV and how it is run.