Although there is a large body of research on effective early reading instructional practices, schools continue to implement instruction and intervention that is not aligned to the science. Over the past 25 years, a Multi-Tiered System of Supports (MTSS) framework has emerged as a leading framework for advancing the reading skill development of…

Ehri's developmental model of word recognition outlines early reading development that spans from the use of logos to advanced knowledge of oral and written language to read words. Henderson's developmental spelling theory presents stages of word knowledge that progress in a similar manner to Ehri's phases. The purpose of this research study was…