Website Review: rachelsenglish.com
In short: Pronunciation, pronunciation, pronunciation—very detailed pronunciation practice. In videos, Rachel shows and explains how to make each sound in American English. There are also pictures of the side of a face with lines on it to show what’s happening inside of the mouth. And she has great exercises to help you practice what you’ve learned.
For teachers: You might put your students into groups and have each group use her videos to understand a different sound. Then, they could make presentations to the class on their sound.