How do you take cell data from 18 different worksheets and combine them in another?

I am trying to make a master list from a number of worksheets on a 2003 excel spreadsheet.
I am a teacher and our school is trying to increase our student's completion rate of homework. In order to do this we have created a spreadsheet to report students who have not turned in homework.

I have assigned each teacher a worksheet with in the spreadsheet. I want to take their data from various worksheets and compile it into on master list.

For example, I want to take Teacher A's A2, A3, A4...cells and place them on a list with Teacher B's A2, A3, A4... cells.

How would I do this?

I have attached a sample excel sheet I am trying to make.

Your post does not comply with Rule 1 of our Forum RULES. Your post title should accurately and concisely describe your problem, not your anticipated solution. Use terms appropriate to a Google search. Poor thread titles, like Please Help, Urgent, Need Help, Formula Problem, Code Problem, and Need Advice will be addressed according to the OP's experience in the forum: If you have less than 10 posts, expect (and respond to) a request to change your thread title. If you have 10 or more posts, expect your post to be locked, so you can start a new thread with an appropriate title.
To change a Title on your post, click EDIT then Go Advanced and change your title, if 2 days have passed ask a moderator to do it for you.

PLEASE PM WHEN YOU HAVE DONE THIS AND I WILL DELETE THIS POST