The IDEA requires that specially designed instruction be informed by research based methodologies. 

(E) supporting high-quality, intensive preservice preparation and professional development for all personnel who work with children with disabilities in order to ensure that such personnel have the skills and knowledge necessary to improve the academic achievement and functional performance of children with disabilities, including the use of scientifically based instructional practices, to the maximum extent possible; (Section 1400)

and 

Section 1414: Evaluations, Reevaluations, IEPs

Congress added new language to the definition of IEPs in Section 1414(d). IEPs must include "a statement of the special education and related services and supplementary aids and services, based on peer-reviewed research . . ."

This week Abby, Angela and Robin discuss research based strategies to support students struggling with elementary math using a practice guide summarizing research based strategies that are proven to have a positive impact.

Here is the article

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