EUGENE (AP) — A coalition of opponents to two education ballot measures sponsored by tax activist Bill Sizemore plans a campaign to defeat the two proposals.

The Parents and Teachers Know Better campaign called the measures costly, ill-conceived, inflexible and potentially damaging.

The coalition includes education organizations, parent groups, elected officials, public employee unions and immigrant rights groups.

Jennifer Geller, the chairwoman for the Lane County chapter of the advocacy group Stand for Children, says the Sizemore education measures are poorly written, vague and not based on best practices.

Measure 60 calls for using “classroom performance” for teacher pay instead of seniority. Measure 58 would limit the amount of time students with little or no English could be taught in another language.