I can play songs like For Elise by Beethoven, The Entertainer by Joplin, Minuet in G by Bach, Turkish March by Mozart, but I not sure if they are appropriated for beginners.
I'll appreciate any help form you guys.
Jama, it would seem pretty clear that the pieces you listed are not appropriate for "beginners." Maybe you didn't mean absolute "beginner students," but rather students who have been playing a while, but are ready to begin studying classical? Either way, these are not intro pieces (although the Bach Minuet in G is fairly easy).
Anyway, jama, you're here and you're asking questions and trying to learn more, so that's a good thing. But it sounds like you have a LOT of work and preparation to do before you try to teach classical music to your students. You must be willing to invest a lot of time and money if you expect people to pay you to teach them.
Just because a person can read English doesn't mean they are qualified to teach advanced English Literature. And a person who can play a few classical pieces is not automatically qualified to teach classical piano.
OK, that's the harsh part--I'm not trying to be unkind, not at all. Now I want to give you a lot of suggestions to help you learn more about classical music.
1. First, you need to study with a classically trained teacher. I have taught piano many years, but I still study with an advanced teacher myself. I consider it essential.
2. Invest in lots of classical CD's and piano books, so you can hear various professional pianists' interpretations of many classical pieces. Alfred publishes some excellent collections of great teaching pieces, that have corresponding CDs. I highly recommend Masterpieces with Flair, Recital Winners, Recital Gems, Applause, Encore, Essential Keyboard Repertoire. These all of have 2 or more levels per title--I have them all and love them. Find a place that gives you a teacher's discount and order as many as you can. (Burt and Co Music online gives, I think, a 20% discount).
3. Also invest in some good study books, ie the Celebration Series, which has not only the Repertoire books, but also excellent workbooks. If you have never had in-depth study of classical music, these workbooks will give you a good idea of *what* you should be teaching students to look for, ie motive/sequence, sonata form, cadences, skeletal melody, harmony structure, using articulation/dynamics/etc to convey the intended mood, and so much more. I have the entire set (there are 10 levels), which also includes CDs and etude books at each level, and with the (I think) 40% discount that Frederick Harris music gives teachers, it was under $300. Yes, that's a lot of money, but what you will learn from it will be the equivalent of a couple of college level music appreciation/theory classes.
4) Invest in some good textbooks and videos that will help you learn more about the various time periods of music, various composers, characteristics of the various time periods, etc. You need to know how ornamentation, articulation, etc varied from Baroque to Classical, for example; when is it appropriate to add pedal; how should dynamic contrasts be used in the different styles; what are the most effective techniques to play counterpoint compared to romantic; etc etc etc. There is a lot to learn! I don't have a lot of books to specifically recommend (maybe others will jump in here), other than: Intermediate Piano Repertoire: A Guide For Teaching (Frederick Harris Music); Ornamentation: A Question & Answer Manual (Alfred); video series by Alfred entitled Performance Practices (available for Baroque, Classical, Romantic, Impressionist, and Contemporary).
5. My favorite *beginning* classical collection for teaching is the Developing Artist Piano Literature series by FJH. The prep level is suitable for students who have studied perhaps 1 to 1 1/2 years. (I think FJH claims it correlates with their 2B book, but I use it much sooner than that). Music Tree also has some great Piano Literature books of original form, early level pieces. First Bach Album is of course great for students.
Jama, I know that everything I have suggested costs $$, but I am assuming you didn't study music in college. A college music degree can easily cost $100,000 or more, so if you invest $1000 or so to build up a good collection of books and CDs, that really is a small investment. Of course it would be tax-deductible (if you're in usa, don't know about elsewhere).
Keep asking questions, keep trying to learn. I hope this has been helpful.
Topic: What songs to teach beginners?