You can personalize instruction for each student in your class by sending lesson assignments to individual students in your classrooms. 

Go to a lesson page and click on the "Teacher" or "Share" tab. Instead of selecting a classroom, choose "Assign to individual students" and start typing the name or the email address of a student in your class. Click on their name from the auto-suggestions. The other students in your class will not receive the assignment; only the student you sent it to will!

Please note, students need to create an account and join at least one of your classrooms in order for you to send them assignments.