Here's the thinking behind the dual endorsements from school districts across the state:

Wynns: "What we fear could happen is that if we say just choose the one you want, neither will pass."

San Francisco Unified board member Jill Wynns is president of the California School Boards Association.

Wynns: "What we find is that if you just say, if you want more funding for schools, vote for both of these, that's the best way to get at least one of them passed."

The governor's Prop 30 wouldn't provide any new money for schools, but it could prevent the elimination of up to three weeks of classes.  Schools would get more funding under education advocate Molly Munger's Prop 38.

If both measures win majority support, the initiative with the most "yes" votes" would see its tax changes take effect.