The preoperational stage occurs is the second stage of Piaget's theory of Cognitive Development. Here, the child becomes familiar with the use of symbols. This also helps in the development of the child's language skills.
The child starts to understand the concept of thinking. This is known as meta-cognition. The ability of the child to represent objects with words and images is integral in the learning and use of language.
Hence, the answer is represent objects with words and images.
<span>Information was used to file claims against insurance companies and government insurance, patients were pushed to take out loans to cover services, patients' credit card information was obtained and card companies were billed, patients were required to furnish bank information and electronic checks were processed by financial institutions.</span>
When products and or services are manufactured at a level that maximizes social welfare, allocative efficiency is said to have occurred.
A market system characterized as monopolistic competition may <u><em>never </em></u>achieve productive efficiency because firms often fix prices at a point higher than their marginal costs.
Marginal cost refers to the added cost incurred by producing or manufacturing one additional unit of a product.
