Final answer:
According to Sternberg, practical intelligence is the information learned informally that is necessary for success, and is a key component of his triarchic theory of intelligence.
Step-by-step explanation:
According to Sternberg, practical intelligence is the type of nonacademic knowledge that people learn through informal learning and cultural transmission, which is necessary to get ahead. This is part of what is known more broadly as the hidden curriculum, referring to the unwritten, unofficial, and often unintended lessons, values, and perspectives that students learn in school. The concept of practical intelligence is a key component of Sternberg's triarchic theory of intelligence, which also includes creative and analytical intelligence.
According to Sternberg, **tacit knowledge** is information that is not formally taught or openly expressed but is necessary to get ahead. Tacit knowledge includes practical skills, experiences, and insights that individuals acquire through personal involvement and learning in various situations.
Unlike explicit or formal knowledge, tacit knowledge is often difficult to articulate or transfer explicitly, making it an essential component of practical intelligence and success in real-world situations. Sternberg's theory of successful intelligence emphasizes the importance of both tacit and explicit knowledge in achieving competence and success in different aspects of life.