"This professional learning module presents UDL as an approach to providing access to robust opportunities to learn for a diverse range of learners in inclusive educational environments."
Seems to be a denouncement of remedial and tracking based courses.
Universal Design for Learning
(UDL), a curriculum designed approach to increase flexibility in teaching
and decrease the barriers that frequently limit student access to materials
and learning in classrooms (Rose & Meyer, 2002).
Differentiated instruction
is a process to teaching and learning for students of differing abilities
in the same class. The intent of differentiating instruction is to maximize
each student’s growth and individual success by meeting each student
where he or she is, and assisting in the learning process.
Co-teaching occurs when two or more professionals jointly deliver substantive instruction to a diverse, or blended, group of students in a single physical space.