This workshop will focus on both assessment and evidence-based interventions for students who struggle to learn to read and spell. The speaker will address the definition of dyslexia; the importance of assessing cognitive and linguistic processes, including phonological awareness, orthographic coding, processing speed, and rapid automatized naming; the phases of development of basic reading and spelling skills; and the implementation of differentiated instructional methodologies for addressing specific types of reading and spelling problems. This session will also describe a new online professional development curriculum, the Mindplay Comprehensive Reading Course. This in-depth course is designed to enhance teacher knowledge of scientifically-based reading instruction and includes videos of literacy experts and classroom demonstrations.