While playing hide-and-seek, Maya hides behind a tree. She accidentally steps on a twig, causing it to snap. When her friend finds her, Maya exclaims, 'The twig betrayed me! It deliberately made a noise to give away my hiding spot.' According to Jean Piaget's theory of cognitive development, this style of reasoning exhibits 'animism', which is characteristic of which stage?

According to Jean Piaget, mathematical knowledge is primarily acquired through:

How does Piaget's theory explain children's process of learning mathematical concepts?

A Class 2 teacher notices that when she pours water from a short, wide glass into a tall, thin one, her students insist that the taller glass holds more water. Based on Piaget's theory, which stage of cognitive development are these students most likely in, and what concept are they struggling with?