According to the Acceleration Institute, "Acceleration is an academic intervention that moves students through an educational program at a rate faster or at an age that is younger than typical. It is about creating a better match between the readiness and motivation of a student and the level and pace of instruction. Academic acceleration can include grade skipping, early entrance to kindergarten or college, moving ahead in just one subject, and other ways of moving a student ahead to more challenging coursework."
To learn more, visit the Acceleration Institute.  

Northwest ISD offers two types of acceleration for students without prior instruction.
Grade Skipping in Northwest ISD
Math Acceleration for NISD students
Kindergarten Acceleration