On the second level of the city, you will have the opportunity to build a school. Even if you don’t build it immediately, after some time a window will pop up that it might be a good idea to take it if you build a school so you can teach people from nearby shelters.
The school will open under the “amenities & services” tab. and the school will cost you…
… and has a positive effect on the surroundings. Therefore, I recommend to build it in the middle of the housing or at least in the vicinity of the housing to be built later.

Once you build the school, it will look like you can see the picture below. I think it is possible to build multiple schools per city. And once they work they will increase your people’s education, but the use of higher education I currently have no idea – not many game mechanics works with education.

But the bonus to desirability is quite high, so even if you don’t see a direct effect with higher education it’s still worth building the school. Although now I’m thinking maybe you can teach healers in school.
How to get teacher in Farthest Frontier?
Unfortunately, in Farthest Frontier, no one can be a teacher. It is, along with healer, the only job you need an educated person for, and the only way to get one without teaching yourself is to have that person come to you during immigration…
… so support immigration as much as you can. Keep the places ready, the people happy and the food plentiful, and within a year or two at the most there’s a good chance a teacher will come to you.
Guides about Farthest Frontier:
How to earn gold? | How to explore? | How to increase population? | How to get food? | How to get logs? | How to get firewood? | How to get heavy tools without a blacksmith? | Tips for a start on a new map | Desirability guide | Defense guide | How to get a healer? | How to get school? | How to repair buildings? | How to get Iron? | How to get coal? | How to get a homestead?