| Question | Answer | Other Info |
| Which substage is characterized primarily by the coordination of the skills gained in the previous stage?? | |
| Which substage is characterized by the beginnings of mental representation? | |
| Which substage is characterized by secondary circular reactions? | |
| What is the object of a primary circular reaction? | |
| What is the object of a secondary circular reaction? | |
| What is the object of a tertiary circular reaction? | |
| During what substage does object permanence first begin to appear? | |
| During what substage does a child first begin to engage in make-believe? | |
| During what substage does a child first pass the A-B test? | |
| True or False: Piaget attached ages to these stages. | |