Students love watching YouTube videos and incorporating them in to your lessons are educational, but also entertaining for the students to watch. Tough algebra terms can be reduced to simply rhymes and raps like this school.
The same school even put together YouTube video for solving quadratics.
Implementing fun videos at the end of lessons is a great way to not only wrap up the lesson, but if you have flipped your classroom it is a great video to add to Khan Academy or other materials. YouTube is a great place to find videos that are educational and entertaining for students. (Barring language that is appropriate for your classroom!)
You can even have a project or rubric where one of the activities is to come up with a YouTube video for the students to put up and have the class watch. There are many other videos out like this.