Learn About UDL
You can learn about Universal Design for Learning by watching this short Introduction to UDL.
While there are no global regulations of rules for UDL, one organization that has worked to define a set of guidelines is the Center for Applied Special Technology (CAST). CAST is a nonprofit research and development organization that works to expand learning opportunities for all individuals, especially those with disabilities, through Universal Design for Learning (UDL). CAST describes Universal Design for Learning as a means to help educators assist learners who might struggle in the educational environment.
Other schools have dedicated resources for Universal Design. At the University of Washington they have a modified definition to UDL. Below is a link with their online tutorials on UDL.
University of Washington – Center for Universal Design in Education (CUDE) Online Tutorial on UDL