The document describes Rosa Vela's first grade classroom and the reading instruction she provides. It also describes Connie Barrera's classroom, where instruction focuses on worksheets and lacks direct teaching of phonics. Vela systematically teaches phonics sounds, provides additional help, and uses a read-aloud to model blending sounds. Barrera's classroom does not address language needs, teach phonics, or provide extra support. The document provides frameworks for core instruction, intervention, and assessing/diagnosing, teaching, practicing, applying, and reassessing skills in struggling readers.