Is it a learning disability or a teaching disability?"" Achieving Fluency presents the understandings that all teachers need to play a role in the education of students who struggle: those with disabilities and those who simply lack essential foundational knowledge. This book serves teachers and supervisors by sharing increasingly intensive instructional interventions for struggling students on essential topics aligned with NCTM's Curriculum Focal Points, the new Common Core State Standards for Mathematics, and the practises and processes that overlap the content. These approaches are useful for both overcoming ineffective approaches and implementing preventive approaches.