A reactor is where a nuclear reaction is controlled, making it possible to create energy or any number of artificial elements. Reactor these days almost always refers to a nuclear reactor, where atomic fission of uranium or plutonium creates the heat used to make steam to generate electricity. Originally, though, reactor meant a vessel in which chemical processes were made to generate useful products such as nylon and artificial sweetener.
Ever since its initial enactment, the federal law has included a commitment to pay 40 percent of the average per student cost for every special education student. The current average per student cost is $7,552 and the average cost per special education student is an additional $9,369 per student, or $16,921.
On average, it costs $10,615 to send a kid to public school for a year. (That's federal, state and local government spending combined.). As the map above shows, that one number masks a huge variation. Utah spends just over $6,000 per student; New York and the District of Columbia over $18,000.