musicmath is EXACTLY 1/2,1/4,1/8 etc. everywhere in the cosmos, and so I say and so does my good friend, When your baby is about 6 mos. old, inside his womb ( and this goes for every baby) . place the bottom of your guitar upon her stomach, and tune it. Then play some easy tunes and tones, and harmonics, and octaves. and talk to your baby. Guaranteed your baby will understand (later) what 1/2, 1/4, 1/8, etc. (and so will the mother) and it will trigger the instinctive harmony's between the three of you. Try it, what can you lose? School is better for kids with some stringed music in their lives.