Final answer:
Piaget proposed that development occurs through assimilation and accommodation. Assimilation involves incorporating new information into existing knowledge, such as learning a new language. Accommodation involves modifying existing knowledge to incorporate new information, such as adjusting our understanding based on new evidence.
Step-by-step explanation:
Piaget proposed that development occurs through the processes of assimilation and accommodation. An example of assimilation would be learning a new language, where new information is incorporated into existing knowledge. An example of accommodation would be modifying existing knowledge to incorporate new information, such as when we adjust our understanding of a concept based on new evidence or experiences.