Open Educational Resources (OER) are freely accessible and openly licensed educational materials that can be used, shared, and adapted by educators and learners all over the world. These resources can include textbooks, videos, simulations, and other digital tools that are designed to support teaching and learning. OER have the potential to increase access to education, reduce costs for students, and promote collaboration and innovation in education. Researchers in this area may study the impact of OER on student learning outcomes, explore best practices for creating and sharing OER, and advocate for policies that support the widespread adoption of OER in education.