Speak It is a Google Chrome extension that enables you to have the text on most webpages read to you. With Speak It installed just highlight the text on a the page you're viewing then right-click to activate Speak It. Then click the play button to have the text read to you. The voice is very digitized, but it is clear.
Installing Speak It takes just a few seconds. To install it go to Speak It's page in the Chrome Web Store and click the install button. Restarting your browser is not required in order to activate Speak It. If you decide that you don't want to use Speak It any longer you can uninstall it by right-clicking on the Speak It icon in your browser and selecting uninstall.
A video demonstration of Speak It is embedded below.
Applications for Education
Speak It isn't a perfect text to speech app, but it is adequate for having webpages read to students. For the student that needs to hear a word pronounced or needs a sentence read to him or her for clarification, Speak It could be a handy extension to have installed in Google Chrome.