Student Assessment - Infant This tool outlines the developmental milestones, goals, and learning for infants through 15 months. The milestones are taken from the CDC. This document is editable to fit your school's unique learning environment. Age Assessments 0-2 Months 2-4 Months 4-6 Months 6-9 Months 9- 1 Year 1 Year - 15 Months Developmental Domains Social/Emotional Milestones Language/Communication Milestones Cognitive Milestones Movement/Physical Development Milestones