Chalkboard Project's own polling data shows Oregonians want a top school system in America (80% say "be among the best" or "be the very best"). But agree that we don't have it.
I would observe that:
(a) our desires for a world-class school system are undimmed over more than a decade
(b) the educational needs of our children aren't changing every year and
(c) we haven't funded our schools to achieve (a).
Too much of Oregon's education "stable funding" debate has focused on the wrong thing: the source of funding; it should be on the amount of funding first, the source second.
We should establish the funding mechanism in the Oregon constitution:
(1) Determine the amount of funding required to achieve our desired goals (education system among the very best in the nation).
(2) Compute the % of state GDP that represents (say 3.75%).
(3) Make the % based on a two- or three-year trailing average of GDP and/or establish a reserve fund. This is because the amount shouldn't go up and down wildly based on economic conditions independent of the number of students -- their educational needs are the same. Also because that makes it predictiable for all involved.
(4) Set the date of when the next year's budget is determined such that we have the GDP for the previous year and are far enough in advance of the next school year for budgeting.
(5) If the legislature fails to provide adequate funding, then an automatic surtax is applied to income or property or sales tax. (I know this may be a bit more complicated than this to avoid pathological cases like the legislature "unfunding" schools to avoid explicitly raising taxes elsewhere and then being "forced by the constitution" to raise taxes for schools, but there's some provision needed here to guarantee the funding is there.)
(See also Follow-up on World-class School Funding inititative.)