Learning efficiency refers to the ability to acquire knowledge or skills with minimal time and effort. It involves using effective strategies and techniques that enhance understanding and retention. Factors influencing learning efficiency include motivation, prior knowledge, and the learning environment. Improving learning efficiency can be achieved through various methods, such as active engagement, spaced repetition, and self-assessment. Tools like flashcards and study apps can also support learners in organizing information and tracking progress, ultimately leading to better outcomes in educational settings.