Differentiated instruction is a teaching approach that tailors instruction to the needs of individual students. It involves providing students with different learning opportunities and resources to help them achieve their full potential.

Grouping students by ability level is not a common strategy used in differentiated instruction. Instead, differentiated instruction focuses on providing students with different learning opportunities and resources to help them achieve their full potential, regardless of their ability level.

Individualization is a teaching approach that focuses on creating a unique learning experience for each student. It involves tailoring instruction to the individual needs, interests, and learning styles of each student.

Using flexible grouping strategies is not a common strategy used in individualization. Instead, individualization focuses on creating a unique learning experience for each student, regardless of their ability level or learning style.

Differentiated instruction and individualization can benefit students in a number of ways. They can help students learn more effectively and efficiently, develop a deeper understanding of the material, and become more engaged in their learning.