Final answer:
Curriculum compacting refers to teaching content from a higher grade in an earlier grade, which is different from concepts like acceleration (physics or educational progression), remediation (extra help for struggling students), or grade skipping (bypassing a grade).
Step-by-step explanation:
The term curriculum compacting refers to the content previously taught in a higher grade in school being expected to be learned in an earlier grade. Unlike acceleration, which describes the rate of change of velocity in physics or the practice of allowing a student to move more quickly through the educational system, curriculum compacting involves the modification of curriculum to eliminate repetition for students who demonstrate mastery of a subject area. Similarly, it is distinct from remediation, which involves providing extra help to students who are struggling, or grade skipping, where a student bypasses a grade entirely.