Yes! The flexibility of Essentials lessons and the three levels of application within each lesson in the newer editions make it easy to differentiate and adapt the curriculum for students of various ages and ability levels.
The expanded version of Essentials, which we released starting in 2015, is designed to facilitate multi-level instruction.
While the core language concepts in Essentials apply to all students, three levels of application within each lesson allow those teaching Essentials to customize instruction and practice for different students' ages and abilities and teach different ages together.
Parts of the lesson marked "All" should be completed together. In contrast, parts marked for Level A, B, and C provide differentiated spelling words, grammar practice, and vocabulary instruction so that you can provide practice at an appropriate level of challenge for each student.
A Placement Test in the Essentials 1-7 Teacher's Guide (also available in the Essentials Teacher's Guide Volume 1 for those who ordered between 2015 and the summer of 2018) helps you find the right starting point for each student. You can also find the placement test online here.
Learn about the parts of an Essentials unit
Learn about the three levels