Thursday, the Tennessee House overwhelmingly passed a bill that puts off more of the Common Core testing and evaluation roll-out until 2016.
The bill keeps standards that are already in place, but delays new standards for science and social studies until July 2016.
Knoxville Representative Ryan Haynes went against many of his Republican colleagues and voted against delaying the roll-out of Common Core standards.
He says Tennessee students are making big gains because of Common Core, and he criticized dozens of lawmakers for a vote he calls uninformed.
"When the bill was brought to the House as the whole and the vast majority of members have never read the issue, they voted it down," he said. "That didn't seem like good public policy to me. I think it's very important that we continue these gains that we're making. I'll stand firm and I'm willing to lose my seat over it."
Representatives Harry Brooks, Bill Dunn, and Roger Kane joined Representative Haynes in voting no. The long list that voted yes includes Joe Armstrong, Steve Hall, Gloria Johnson, and John Ragan.
Supporters of the bill say schools need more time to put the standards in place.
The bill only passed the House and must get traction in the Senate to have a chance of passing.