Ubiquitous learning, also known as u-learning or pervasive learning, is an educational concept that leverages the power of technology to make learning accessible anytime, anywhere. This pedagogical approach focuses on integrating digital resources, networks, and devices into the learning experience, breaking down traditional barriers to education. Some of the main characteristics of ubiquitous learning include:

1. Accessibility: Learning resources are available 24/7 on various devices such as smartphones, tablets, and computers, enabling learners to access educational content regardless of time or place.

2. Context-awareness: Ubiquitous learning systems can adapt learning materials and experiences to each learner's unique context, taking into account factors like location, user preferences, and performance.

3. Personalization: Using artificial intelligence and data analysis, u-learning can provide a personalized learning path tailored to an individual's learning style, abilities, and interests.

4. Real-time feedback: Students receive immediate feedback through interactive systems, enabling them to adapt and refine their learning process for better results quickly.

5. Collaborative learning: Ubiquitous learning technologies encourage collaboration among learners, fostering teamwork and connectivity in online communities.

6. Integration of formal and informal learning: Instead of being limited to formal educational settings, u-learning blends formal and informal learning in real-world contexts, offering a more holistic learning experience.

7. Lifelong learning: As learning resources are made available anytime, anywhere, it supports the notion of lifelong learning, where individuals can continuously upgrade their knowledge and skills throughout their lives.