Being Green: Try the CleanPrint Browser Tool

CleanPrint  works with all browsers, including Chrome, Firefox, Internet Explorer and Safari, by allowing you to delete, images, text (You can change the font size as well) and ads before printing. Less printing means less ink and less paper. NOTE: You most likely will need your school tech person to download the add-on for Firefox and Internet Explorer. I was able to get the bookmarklet for Chrome. (Couldn't see about Safari because my school has all PCs)

 
Thanks to Free Technology for Teachers for posting.