From Piaget's theory and the information processing with accommodation and assimilation, how do Nia-Piagetians approach that, and what do they include and discover in the child's development? For example, Robbie Case emphasized the roles of capacity and problem-solving strategies. Processing and coordinating more elements in a situation, differentiating information, and setting subgoals as means to a goal lead to cognitive development. A set of domain-specific central conceptual structures assembles activities such as exploring objects, observing and imitating other people, and cooperating with other people during problem-solving in a particular area such as number or social cognition. '- The information-processing approach takes as its starting point the flow of information through a computerlike system. Humans attend to information, transform it into a mental representation of some sort, compare it with information already in the system, assign meaning to it, and store it.

The same Vygotsky, with scaffolding, found that external help encourages the development of reasoning and explanation in children.

How do you connect and explain these theories for cognitive development with the children's problem-solving?