But Ms. Kirchoff, the president of the teachers’ association, is furious. “My projector works just fine,” she said. “Give me Kleenex, Kleenex, Kleenex!”

The Parents

Last November, Kyrene went back to voters to ask them to pay for another seven years of technology spending in the district. The previous measure from 2005 will not expire for two years. But the district wanted to get ahead of the issue, and leave wiggle room just in case the new measure didn’t pass.

It didn’t. It lost by 96 votes out of nearly 50,000 cast. Mr. Share and others here said they attributed the failure to poor wording on the ballot that made it look like a new tax increase, rather than the continuation of one.

They say they will not make the same wording mistake this time. And they say the burden on taxpayers is modest.

“It’s so much bang for the buck,” said Jeremy Calles, Kyrene’s interim chief financial officer. For a small investment, he said, “we get state-of-the-art technology.”

Regardless, some taxpayers have already decided that they will not vote yes.

“When you look at the big picture, it’s hard to say ‘yes, spend more on technology’ when class sizes increase,” said Kameron Bybee, 34, who has two children in district schools. “The district has made up its mind to go forward with the technologically advanced path. Come hell or high water.”

Other parents feel conflicted. Eduarda Schroder, 48, whose daughter Julia was in Ms. Furman’s English class, worked on the political action committee last November to push through an extension of the technology tax. Computers, she says, can make learning more appealing. But she’s also concerned that test scores haven’t gone up.

She says she is starting to ask a basic question. “Do we really need technology to learn?” she said. “It’s a very valid time to ask the question, right before this goes on the ballot.”