After work, you drive home to find that your toddler is pushing the garage door opener so that the garage door opens and then shuts. at first you were a little unhappy that she was doing this, but you remembered your training in development and realized that your daughter was engaged in what piaget referred to as

The correct answer is tertiary circular reactions. The tertiary circular reactions often occur between the age of 12-18 months old by which the child is likely to engage to overt trial and error to problem solving, the child Is likely to adapt purposefully in order to establish schemes in specific situations and lastly, the child engages to experimental quality in his or her behavior.

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