Which of the following is a barrier to success in learning?

Skipping school is indeed a significant barrier to success in learning, as it prevents a student from being present during important instructional time and interrupts the ability to absorb new material. Consistent attendance is crucial for building knowledge, understanding concepts, and developing skills that are often layered upon one another. When a student skips classes, they miss valuable opportunities for direct instruction, interaction with teachers, and collaboration with peers, all of which contribute to a comprehensive learning experience.

In contrast, completing homework before class, actively participating in discussions, and engaging with peers are all practices that enhance learning and foster academic success. These actions promote understanding, reinforce knowledge, and encourage a sense of community within the educational environment, which are essential for effective learning outcomes.