A group calling itself Class Size Counts is collecting signatures for a Washington ballot initiative that would decrease class sizes in public schools.
The group announced Initiative 1351 on Monday in Seattle.
Washington voters approved another class size initiative in 2000, but like this proposal it did not supply a source of money to pay for it.
The initiative prioritizes smaller classes in the younger grades and in low-income schools.
Washington lawmakers have already committed to shrinking class sizes in kindergarten through third grade. That education reform is part of the Supreme Court's McCleary decision on school funding.
Education research has found that students learn more in very small classes of under 17 students. Washington has some of the largest classes in the nation, but it's not clear how far this initiative would decrease classes.