How did you teach your baby children to count?

Don't overthink it! I've found counting and going through the alphabet at bedtime to relax, but they will get it eventually whatever you do. My son has always been fairly reluctant to read and write (he's 6) and all of a sudden he can read books at his age above and write several pages of text. It happened so quickly that I'm not conscious of anything in particular we did, he just levelled up developmentally.

Honestly, just count everything. My wife would make games out of counting white cars or VW Bugs or garbage trucks on the road.

Later, it transitioned into number facts. Our little guy was comfortable with basic multiplication in kindergarten/1st grade and seems to have a real intuitive sense of numbers. It was awesome when he “discovered” division on his own by subtracting.

Each kid is different, but whatever makes numbers a natural thing and not something to be feared is a win.

Every evening, I'd count slowly (~1-2Hz) and continuously until my son was asleep. It worked both to teach counting and to help him settle - even on nights where he fought going to sleep he'd usually be out by 200.

start with single tone monkey grunt, bump up to double tone with grunt variation on the incrememt, and grouping. then add complexity of grunts for mathmatical operations, and sliiide into phonetics by teaching them each phoneme as a number "from 44-329?" then introduce positional alpha/numer/symbol systems with enhancing complexity based on relevant daily task implimentation for activity description and/or teem logic building

I count every step I go down the stairs with them. Count whenever you put food in their bowl. Just play with them, count with fingers or pebbles.

I bought a bunch of picture books for children which are for counting. Repetition is also a key, I try to read the books every day before sleep.

A bowl of twenty oranges. I made the child say the number out loud as they moved oranges from one bowl to another one at a time.

The count... Seriously though, like another poster said, repetition is key. They eventually develop context around it as well.

Songs are probably the easiest.