Final answer:
The pattern likely relates to the motor and cognitive development patterns in children, which are noticeable by 3 years of age but are not used robustly until later in the preschool years as children refine their skills.
Step-by-step explanation:
The pattern referred to in the question is likely related to cognitive and physical development patterns observed in children during early childhood. By 3 years of age, children demonstrate significant growth in motor skills and cognitive abilities. They can handle small objects, do simple puzzles, and are beginning to have the fine motor skills necessary to hold a crayon with a tripod grasp. However, the use of these skills with power and finesse, such as cutting precisely with scissors or building complex structures with blocks, typically strengthens during the preschool years, as children's muscles and coordination continue to develop.
At age 5, their abilities have become more refined, allowing them to engage in more complex tasks such as tying shoelaces, riding a bicycle with training wheels, and carrying on conversations. During these years, children's cognitive development also flourishes, evident in their ability to count, recognize letters and words, and understand basic time concepts. This cognitive and motor development sets the foundation for more sophisticated skills used in school and daily activities.