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.
Nevertheless, at $220 per student, the national cost would be almost $2.8 billion. Of that amount, cost estimates suggest that $670 million ($53 per student) are direct costs with additional out-of-pocket expenses for training and materials. The direct costs come from State and local government coffers.or example, the All Stars program has a cost-benefit ratio of 34:1 (see Table 12), which means it returns $34 dollars in savings for every dollar invested, yielding net benefits of $4,670 per pupil ($4,810 in social cost savings minus $140 in program costs).