Strengthen the foundational skills your child needs for classroom success. Spectrum Numbers and Counting for prekindergarten to kindergarten builds math readiness by offering students the opportunity to practice using numbers. This early learning supplemental workbook aligns with state standards and delivers relevant, grade-appropriate activities that meet students' needs for learning achievement. Aligned to state standards, these activities include counting to 100, writing numbers through 20, and comparing numbers of objects. 96 pages, consumable workbook. PreK-Kindergarten. Ages 4-6.