Which concept emphasizes the active construction of knowledge by children?

The correct choice emphasizes the notion that children actively construct their understanding and knowledge of the world through experiences and interactions. According to Piaget's Theory of Cognitive Development, children are not passive recipients of information; rather, they engage with their environment, manipulate objects, and experiment with various ideas to form their understanding. This theory outlines stages of cognitive development, where children progress through increasingly complex forms of thinking and reasoning, leading to a deeper comprehension of their surroundings.

In this context, the focus on the processes of assimilation and accommodation highlights how children integrate new information into their existing mental frameworks and adapt their thinking based on experiences. This concept underscores the importance of active learning and exploration in fostering cognitive growth in children.