Final answer:
The spiral concept in 'Children Moving' highlights continuous development, reflecting a view of gradual improvement and adaptation in a child's growth, in contrast to sudden leaps seen in discontinuous development. Cultural factors can influence the timing of developmental milestones but do not alter the universal sequence of development.
Step-by-step explanation:
The spiral concept presented in Children Moving highlights continuous development rather than restricting or emphasizing a linear progression of movement development. This concept suggests that development is a cumulative process, which means that it is gradually improving on existing skills. Unlike discontinuous development, which sees growth in more discrete and unique stages, continuous development involves gradual change and adaptations over time, much like the spiral design process where changes are made and evaluated in a continuous loop to refine and improve the design. An example from the context of child development would be the gradual increase in a child's height as they grow, as opposed to sudden cognitive leaps such as the realization of object permanence.
Cultural and genetic differences do influence a child's behavior, but despite these differences, there are universal patterns in the sequence of development. For instance, language milestones tend to be reached in a similar sequence across cultures. However, cultural practices can affect the timing and expression of these developmental milestones, as seen in various child-rearing practices around the world, which can accelerate or inhibit certain motor skills.