Many versions of best practice have been attempted in the past. Personally, I think they are all too rigid, and have insufficient respect for a) the natural learning instincts of human beings, especially children, and b) the wide variety of healthy individual development.

I would agree with ConnectingDots. Follow where his interests and delights lead him. If you gift him with a safe, beloved, and joyful childhood, he will have the best possible foundation for present and future learning.

...pronounced like the long vowel and first letter of the alphabet...