The development of the infants starts from the day of the birth. The development of the baby includes the different stages and the development occurs at each month with physical and physiological changes.
During the first year of the development the child knows how to stand, walk, sit and react on the other people expressions. During the second year of the child development, the child knows about the balancing of their body and feet in the squat position.
Answer: within the first year, within the second year
Explanation:
Many toddlers start to sit, stand and walk by the age of 9 to 15 months of age. These are because of the changes that occur in the brain and the spinal cord. By the age of two the brain develops coordination with the muscles of the body and the infant establishes balance on the feet and hip muscles becomes strong that aids in achieving the squatting position.
