School districts across the state, now in the midst of adopting textbooks for next year, are wondering how Gov. Ron DeSantis' plan to change the Florida Standards will impact what books they're buying.

Millions of dollars in textbook spending is on the line.

DeSantis on Thursday called for an end to the state's version of Common Core math and reading curriculum, known as the Florida Standards. He wants Education Commissioner Richard Corcoran to review the state's K-12 academic standards and come up with a new plan by next year.

“I have heard parents from across the state loud and clear, and they all agree that it is time to finally end Common Core,” DeSantis said in a statement.

His executive order, he said, would eliminate Common Core and help prepare students "for the real world" through increased civic education.

DeSantis' directive left some districts wondering whether or not to stick with adopting Common Core-based textbooks for 2019-20. Changing curriculum within a year of adopting five-year contracts with textbook publishers is an issue, educators say.

Districts such as Martin and Indian River counties have held off buying new textbooks until they get more information.

Brevard County, on the other hand, already has signed off on $2.3 million in math textbooks and workbooks for grades K-6 for next school year.

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Martin County School Board scheduled an emergency meeting Tuesday to ask DeSantis for more direction, said district spokeswoman Jennifer DeShazo.

Martin County is in the process of a $1.4 million math textbook adoption for next year, she said.

"We’ve gone through all of this work now, and now we’re in a position where it’s like, ‘Now what do we do with this?’," said Christia Li Roberts, Martin School Board chairwoman. "We’re looking for direction or guidance as to what either the governor or the Florida Department of Education wants us to do."

“You really don’t want to spend $1.4 million on something that, at the time you’re purchasing it, you know is going to be obsolete," Roberts said. "And there is no other alternative at this point.”

Indian River School Board Chairwoman Laura Zorc said she favors going forward with textbook adoptions, as any impact likely is two or three years away.

"It's not going to be something overnight," Zorc said. "We don't know what the new standards are, and it probably won't happen for a couple of years."

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St. Lucie County School District officials did not respond to requests for information on textbook adoptions in light of DeSantis' announcement.

The Brevard School Board, which approved its new math textbooks in January, will stick with its purchase.

Brevard officials said they have no immediate concerns about replacing textbooks if DeSantis' move succeeds. It will take two or three years for the state to develop a new set of standards, spokesperson Matt Reed said.

Florida adopted Common Core in 2010, changing to a revised version in 2014 and calling it the Florida Standards. The standards, in addition to deciding what students learn at each grade level, mandate end-of-course exams in algebra, geometry and biology and require third-graders to pass reading tests. Students also must pass a middle-school civics course.

Staff writer Caroline Glenn contributed to this report.