SIPPS Beginning parallels kindergarten foundational skill standards, as does Being a Reader Small-Group Reading Sets 1, 2, and 3. SIPPS Extension parallels first grade foundational skill standards, as does Being a Reader Small-Group Reading Sets 4 and 5. SIPPS Challenge parallels second grade standards, which are addressed in Being a Reader Grade 2 Word Study. SIPPS Plus addresses kindergarten and first grade foundational skills but is designed for older grades in grades 4-12.