This is one of my favorite lessons. I’ve taught it in class before, and I have used it in several of my college courses as well. I have included all the elements needed to teach this lesson. If you use this in any of your own college classes, please credit me for the creation of the PowerPoint.
*Addendum: The photo in one of the slides incorrectly attributes the work “Young Person’s Guide to the Orchestra” to Prokofiev, when it is actually by Benjamin Britten. Thanks to evbarker for pointing that out.
PowerPoint – Instrument Families & Promenade Listening Map
Promenade Sound File
About Lady Fair
Lady is a musician with a bachelor's degree in music education. She plays multiple instruments and has participated in numerous musical ensembles, giving her a wide variety of experiences and knowledge to use in her teaching career. Of her ensemble participation, she has fifteen years of band experience, nine years choral, and four years in orchestra. Éowyn's primary instrument is clarinet, with voice and piano being close secondary instruments. Throughout her musical education career she studied voice and clarinet simultaneously. In addition to clarinet, piano, and voice, she has also studied violin and oboe at the college level, and also plays recorder, tin whistle, and other instruments in the woodwind family.
If you ask her, she will say, "I chose to major in music education because I have a desire to use my knowledge and experience in music to share its beauty and foster a love of music in the hearts of my students. I hope to encourage my students to try their hardest, feel like they have accomplished something, and give them a life long passion for music."
Lady currently teaches private lessons on clarinet, sax, flute, oboe, piano, and voice, and recently gained a position teaching orchestra and chorus at a local middle school. She is also a member of the Once Upon a Dream woodwind ensembles.
Adventures of a Music Teacher 
In the power point, “Young Person’s Guide to the Orchestra” is attributed to Prokofiev, but it was actually written by Benjamin Britten.
Thanks for catching that! I did not create the photo myself. Maybe the person who did was thinking of Peter and the Wolf, or made an error in editing.