According to Piaget's cognitive theory, which of these do people receive input from the environment?

In Piaget's cognitive theory, individuals interact with their environment and develop understanding through their experiences. The concept of mental constructs refers to the frameworks or ideas that a person develops based on their interactions and observations. These constructs are shaped by experiences and help individuals categorize and understand the world around them.

As people encounter new information, they integrate it into their existing mental constructs or modify them, which is a key aspect of Piaget's notion of assimilation and accommodation. This process enables individuals to adapt and evolve their understanding over time, directly illustrating how input from the environment shapes cognitive development.

The other terms, such as mental maps, mental plans, and mental processes, do not encapsulate this interaction with the environment in the same foundational way. Mental maps refer specifically to spatial understanding, mental plans to future actions, and mental processes to the overarching cognitive activities, but they do not specifically highlight the development and interaction with constructs as shaped by the environment, which is central to Piaget's theory.