Teacher-world.com offers current and future teachers a great online resource that is sure to help them improve their teaching level.
The site has Educator Career Information that is sorted by state. Just find the state you wish to teach in and get all the information you are looking for. If you want to go back to school to get a better teaching credential, you can visit the Teacher Education section and find all the information you will need to become a better teacher. Substitute Teachers have their own section dedicated to them. This is a great resource for anyone looking to do some teaching on the side. The lesson plans are very complete and should satisfy teachers of any level of education. You can create your own lesson plans using the ones that are available on the site. They are a great starting point for designing your personal teaching plans. 
