Your little brother has a big ball of clay. while he watches, you roll the ball of clay into a long snake-like shape. he begins to cry because he thinks he has less clay now. which of piaget's stages is your brother likely to be in?

My brother would belong to the Pre-operational from Piaget stages.

Basically, Piaget's four stages of intellectual (or cognitive) development are:

Sensorimotor. Birth through ages 18-24 months.
Preoperational. Toddlerhood (18-24 months) through early childhood (age 7)
Concrete operational. Ages 7 to 12
Formal operational. Adolescence through adulthood.

Where are the choices that I have to choose from? Anyway, I'll just provide a detailed answer to your question.