Everyday Math, however, teaches only to the state standards (Maine’s standards received a “D” grade by the Thomas B. Fordham Institute). The Grade 3 Everyday Math book used throughout Maine was rejected by Texas (weak multiplication) and California (standards not met). These are the only states that approve textbooks for their schools. Maine does not review texts, so schools here are free to choose it, and most do.
You can read more from Beth here.