You can teach the piano to children from age 3 onwards using the Dogs and Birds method.
It is not necessary to know the alphabet.
Animals symbolize the notes: Dog for D, Bird for B, and Cat for C etc.
I would, without hesitation, recommend "Dogs and Birds" as a most wonderful introduction for our youngest children in the commencement of their musical journey at the piano. Emily Jeffrey – Royal College of Music, Purcell School, and Royal Holloway University of London
What People Say About the Dogs and Birds Piano Method - See some video testimonials here.
The next Two Day Dogs and Birds Windsor Workshop for Teachers will be held on 1st and 2nd June 2018. The second Early Bird Deadline is 1st May. Download an application formhere.