(CNN) -- In tests for teacher Tom Farber's high school class, students can demonstrate their mastery of calculus and find out where to get braces or even a haircut.



Calculus teacher Tom Farber is selling ad space on tests to defray printing costs.



Squeezed by classroom budget cuts, the Rancho Bernardo High School teacher is selling ads on his exams to cover the costs of printing them.



"It raises money for the teachers and it's amusing for the kids, so it seems like a win-win," said Luke Shaw, 18, a student at the suburban San Diego, California, school.



Parents and administrators also praise Farber, 47, for his creative classroom funding, but he doesn't want it to become the norm.



"My intention is, [selling ads] is a stopgap measure," said Farber. "I don't want to be doing this year after year."



Instead, he says, government must do more to help educators provide what students need.



Farber started letting parents and local businesses sponsor tests this fall after learning budget cuts would limit his in-school printing allowance -- tracked by the school's copy machines -- to $316 for the year. The cost of printing quizzes and tests for his 167 students will easily be more than $500, he said.



That meant Farber, whose courses prepare students for the Advanced Placement exam, would have to give fewer or shorter tests, or find money. Farber, who says 90 percent of his students got a 5 -- the top score -- on AP exams last year, said skimping wasn't an option.



"It has to be a certain quality, or they won't be ready," he said.



So Farber, who says he'd never asked for money from parents in his 18 years of high school teaching, pitched the ad idea to parents at a September back-to-school night. For checks made to the math department -- $10 a quiz, $20 a test or $30 for a final exam -- they could insert an inspirational quote -- their own or someone else's -- or a business advertisement at the bottom of the first page.  Watch how teacher came up with ad idea »



Of the seven to run so far -- one per test or quiz -- five were quotes, and two were ads from local businesses connected to the parents or someone close.



"Brace yourself for a great semester! Braces by Henry, Stephen P. Henry D.M.D.," read one of the ads in small type at the bottom of a quiz's first page.



Farber said orders took off after recent media reports. He's collected more than $300, and he believes he'll top $1,000, with some ad buyers paying more than required. All amounts beyond his shortfall will cover colleagues' printing costs, he said.



Farber said students and parents have gotten a kick out of the sponsorships.



Student Scott Robison, 18, said: "I liked it because all the teachers complain about budget cuts, and he did something about it. It hasn't hurt in any way."



Luke Shaw's father, Jay Shaw, said he wants to sponsor a test next semester.



And while Jay Shaw praised Farber's idea, "It's just sad it came to the point where he needs to do that," he said.



Farber said he doesn't want quiz ads "to become the standard."



"What I'm doing now is ... dealing with the economic situation and making sure kids get what they need," Farber said. "Teachers shouldn't have to scrounge for funding. To me, this is what our government is for, to provide necessities, and that's why we pay taxes."



But California's budget crisis has forced Farber's school district, Poway Unified, to cut costs, district Superintendent Don Phillips said.



The California Federation of Teachers says the state cut more than $4 billion in education spending this year. Phillips said that when the district sought to chop $
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