Follow CBSDFW.COM: Facebook | Twitter

AUSTIN (CBSDFW.COM/AP) — A plan to rate public schools statewide by letter grades A through F is headed to the full Senate.

READ MORE: Some Tenants Say Conditions At Dallas' Highland Hills Apartments Still Unlivable Following Explosion

The Senate Education Committee approved the much-watched bill Tuesday. It would issue letter grades based on student standardized test scores.

Republicans largely back the idea, and it appears likely to clear the Senate, despite Democratic reservations.

Supporters say grades are easy to understand and will spur parents to force changes at failing schools. Schools are currently rated on a “met standards” or “needs improvement” pass-fail system.

READ MORE: Dallas Zoo Mourns Loss Of Another Giraffe; 19-Year-Old Auggie Died Of Age-Related Issues

The bill would take effect next year. Texas has already approved implementing a letter grade system for school districts, but not individual campuses.

Opponents worry that attending an F-graded school could stigmatize students, and say poor ratings more reflect inadequate classroom funding than education quality.

Last year, the Denton Independent School District threw traditional grading methods out the window and also shifted to a new way of assessing their students.

(©2015 CBS Local Media, a division of CBS Radio Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.)

MORE NEWS: Lawlessness Once Reigned On 'Hell's Half Acre' In Downtown Fort Worth

(© Copyright 2015 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)