kindergarten teachers in US = 1. # kindergarteners in US divded by 2. # of kids in a class
1. # of kindergarteners in US = 300 million people in the US, let's assume the population is evenly distributed by children, adults, senior, so 100 million children. out of 100 million, let's assume 15% are kindergarteners.
15 million kindergarteners in US.
let's assume there's 30 kids in each class. 30 classes * 30 kids = 900 students in a school
If there are 15 million kindergarteners in the US, divide that by 30 kids in a class = 500,000
There are roughly 500,000 kindergarten teachers in the US.