What is an easiest way on how to teach numbers and letters to a 1 yr 8 months baby?

para sakin mas mabilis nila matutunan kapag pinanunuod ko cla ng nursery rymes at sinasabayan ko ng kanta then at the age of 1 kabisado n nila ang alpahet Phoenix song & numbers kasabay ko n din silang kumanta tapus nung coming 2 alam n nila alam n nila ang alpahet a-z sounds at numbers 1-20....