My elementary schools are closing

My elementary schools are closing, allegedly due to lack of teachers, even though I have 10,000 unemployed teachers. But when I try to build new schools, it says I only have 4 teachers available.
Which statistic do I trust? Why is one of them wrong? Or am I reading it wrong?

My country is Haenelonia on Kebir Blue.

Also, is there a way to prevent the game from closing down understaffed facilities, regardless of how unproductive they are? I don't want to keep rebuilding stuff every few months just because of temporary worker shortages.

Your country is actually Kingdom of Haenelonia. Only exact searches work.

You built a bunch of schools at once, particularly high schools, of which you now have too many. Remember teachers as a profession is split between both elementary and high schools. Available teachers looks at both current and ordered schools. I am guessing while you, indeed, has some unemployed teachers available, you had ordered more schools than the available teachers can staff. No, you cannot prevent the closing of schools if you choose to spam them out without enough teachers. Just don't do that.

As a profession, you should be able to fix this. You already have enough high schools for your country for the next real-life month. Just build the elementary schools you need with the teachers you have available as you go. As a rule, you don't want more schools than you actually need because of the upkeep and manpower costs. An index of no more than 130 should be fine for you.

@Elias:
Both numbers can be trusted, but the unemployed number on the employment page does not take into account "soon to be employed" teachers that will be needed for the new schools you've ordered.

When you're on the page to order a new school, it will tell you how many you can staff. Do not exceed that number.

@Aries: You say not to exceed the number of schools actually needed, but I feel like I want to be ahead of the demand, and have the schools before I need them.

This might be because I'm new (8 game months in now, but I played years ago also.) but my population is growing 500M / month despite my birth and death rates being roughly equal. My immigration index is about 130, but I'm still showing 0 people coming each month.

I have no idea how my population has gone from under 6M to over 11M in just 7 months? I would have presumed it was either births or migration. I've only gained 800k from log in rewards, so that doesn't account for 20% of the increase.

I also don't see how my population is aging by a year every month?

Or why my life expectancy is falling at the same rate my hospitals raise the health of my country?

Is there any value in having life expectancy longer than 65, if the people retire at 65?

I know this has been about more than just schools, but it all seems inter related to me.

@Aries

Part 2, and slightly different topic:
In the real world: many schools, and hospitals (since they seem to function the same in game in terms of staffing) run with less than 100% staff.

Also: corporations in game run at less than 100% staffing.

It would make sense that reduced staff facilities would run at a reduced effectiveness. For example: 90% staffed = 90% as effective.

In this way, the buildings set an upper limit for capacity.
Also, there might be an option for over staffing, not only schools and hospitals, but also corporations.

For example: I would like for my state corporations to put more people to work to keep them gainfully employed, and causing my low workers to upgrade through experience, instead of sitting on welfare, costing me about the same, but with no benefit to my country.

Choosing 300% staffing would be like running 3 shifts at the corporation, which would boost productivity. Past 300% would be increasing salaries of the corporation with maybe little to no productivity increase.

Or maybe that number should be 400%? Since you have 168 hours a week, so a 40 hour work week would allow for 4 full shifts, plus some time for changing shifts.

In a related note: instead of dictating a flat multiplier for all government workers, it would be nice to promote specific jobs, such as nursing, without having to boost all of the competing jobs.