The following are useful websites for teachers. They offer tools which make their work easier, saving time.
ZIETMYSORE’S PRT BLOG
1. You can create well-formatted test papers with answer key at this website. Please do check it out http://www.easytestmaker.com/
2. Collections of free to use images without copyright issues http://www.freeimageslive.co.uk/search/imagesearch.htm
3. Create your quizzes using online tools http://quizlet.com/teachers