Which sequence correctly lists major gross motor milestones in infancy in order?

Which sequence correctly lists major gross motor milestones in infancy in order?

• A. Head control around 1-3 months; rolling over around 4-5 months; sitting with support around 4-6 months and without support by 6-8 months; crawling around 7-10 months; standing with assistance around 9-12 months; walking independently around 12-15 months.
• B. Head control around 1-3 months; rolling over around 4-5 months; sitting with support around 4-6 months and without support by 6-8 months; crawling around 7-10 months; standing with assistance around 9-12 months; walking independently around 12-15 months.
• C. Crawling, standing, walking, rolling, head control.
• D. Sitting, crawling, standing, walking, rolling.

Answer: (A)

Gross motor development in infancy generally follows a head-to-toe progression: control of the head first, then rolling, then sitting, then crawling, then standing, and finally walking. The sequence that lists head control around 1–3 months, rolling over around 4–5 months, sitting with support around 4–6 months and without support by about 6–8 months, crawling around 7–10 months, standing with assistance around 9–12 months, and walking independently around 12–15 months reflects this typical order. These ages are approximate and can vary, but the progression from head control to sitting, then crawling, then standing, and finally walking is the key pattern. Other sequences don’t follow this natural order: they place milestones like crawling or walking before head control or rolling, or they jumble the steps, which doesn’t match how infants typically build gross motor skills.

Gross motor development in infancy generally follows a head-to-toe progression: control of the head first, then rolling, then sitting, then crawling, then standing, and finally walking. The sequence that lists head control around 1–3 months, rolling over around 4–5 months, sitting with support around 4–6 months and without support by about 6–8 months, crawling around 7–10 months, standing with assistance around 9–12 months, and walking independently around 12–15 months reflects this typical order. These ages are approximate and can vary, but the progression from head control to sitting, then crawling, then standing, and finally walking is the key pattern.

Other sequences don’t follow this natural order: they place milestones like crawling or walking before head control or rolling, or they jumble the steps, which doesn’t match how infants typically build gross motor skills.