I am a business education teacher in Knoxville, Tennessee. I teach Business Principles. We go over all the personal money management info. The website "practical money..." is excellent. I have used it for several lessons.
I am finishing up the school year with budgeting. I have told my kids that in general 20% of their salary will go to taxes if they are single. Insurance is roughly $150. I have a form that breaks down the expenses which is pretty realistic. I have students draw for a salary and they must complete a budget with their selected salary. They have to shop for a car, apartment, insurance, etc... They really like the assignment. However, can you believe I had a student get upset with me because he drew a salary of $18,000?! Yes, believe it.
Sorry, this is a rambling email, but I am grading and reading at the same time.
Good luck!