This information has many implications for allocation of resources. Resources affect implementation. Teachers need to use an integrated, coherent approach. The greatest challenge is how to group for flexible, instructional grouping. It's important to put resources into early grades, not third grade and above where the high stakes accountability is.
Research shows it's easier to help children at earlier stages.
The state department of education should work with Head Start, and with all day care providers. Schools often don't know where children have been before they were five years old. Schools and states need to focus on this. We have a convergent research base to guide policy. A divergent group of researchers came together and found a convergent research base.