The program is dedicated to re-educating former prisoners to help them rejoin society.

re-educating 是动词 re-educate 的现在分词形式。re-educate 由前缀 re-（表示“重新”）和动词 educate（教育）组成，字面意思是“重新教育”，在这里特指对刑满释放人员进行思想改造和行为矫正的教育过程。