Practical applications refer to the real-world uses of theories, concepts, or technologies. For example, in the field of engineering, practical applications can include designing bridges or creating efficient energy systems. These applications help solve everyday problems and improve quality of life. In education, practical applications involve using classroom knowledge in real-life situations. For instance, students might apply mathematics to budget their expenses or use science to understand environmental issues. This hands-on approach enhances learning and prepares individuals for future challenges.