This lesson/unit was designed to last 3 weeks for 45 minute music classes. I used this to prepare my kids for an end of the year instrument themed escape room but it could be used for other things as well. There are lots of video links in this lesson that show various instruments, performing ensembles, and more. At several points between these videos I have slides dedicated to specific instruments, instrument families, and more. There are several guessing games in this PowerPoint that I used to quiz my students about different instruments along the way as well.