The Arizona Senate has killed a bill prohibiting the state from using a set of new educational standards adopted by most of the nation.

Senate Bill 1310 by Republican Sen. Al Melvin of Tucson would revoke the use of Common Core standards.

State Senate President Andy Biggs voted in favor of the bill and spoke against it on the floor. He explained that he thinks Common Core is a "further step towards the nationalization of the K-12 system."

The standards aim to focus learning on comprehension and real life examples and were designed by a national group of governors and education leaders. Arizona adopted them in 2010 without opposition, and school districts have spent millions implementing them.

But some Republicans have denounced the standards, saying they're a poorly conceived federal effort to usurp states' rights.

Supporters say eliminating the program would cost Arizona millions in federal funding and would make the state less economically competitive.

On Tuesday, the full state Senate voted to advance the bill. The Senate killed the bill with an 18-12 vote on Wednesday.

The Associated Press contributed to this story