Classroom Jobs include:
score keeper and time keeper
I laminate them and put them on a wall. Then students submit job applications according to what their strengths and preferences are. I then select the most responsible students. I then put down what person has what job on another worksheet. (See picture in PowerPoint) You can download the worksheet for free from my store. It is called "Classroom Job List" to help you organize it by periods for those who teach middle school.
The PowerPoint is editable so you can edit the jobs and descriptions. You might just have to change the added clip art to suit the new job. I designed it to help my classroom and I know everybody's needs are different which is why the jobs are editable. It will be very easy to make the necessary changes.