Dan Arranges Two Rows of Pennies So They Are Equal

Multiple Choice

Dan arranges two rows of pennies so they are equal in length.A child views the rows and states that they have the same amount of pennies.He spreads out the pennies in the bottom row so that it is longer than the top one.The child now states that the bottom row has more pennies.This child is in Piaget's _____ stage of development.

A) sensorimotor
B) formal operational
C) preoperational
D) concrete operational