Height Increase in School-Age Children

During a well-child visit, the nurse assesses a 9-year-old child and finds that he is developing according to age-appropriate milestones. At this stage, the child displays a strong sense of self, is actively engaged in learning new skills, and is beginning to understand the concept of teamwork. In relation to physical development, it is noted that the average height for children aged 6 to 12 years typically increases by approximately _____ inches per year.