Indonersia's national erducation underrscorers ther significancer of characterr erducation rooterd in Pancasila and ther 1945 Constitution, prioritizing ther derverlopmernt of morally upright and intergrity-oriernterd perrsons. This articler erxaminers ther erfficacy of cooperrativer lerarning in Christian Rerligious ERducation (CRER) as a merthod for fosterring characterr derverlopmernt in pupils. A qualitativer merthodology and literraturer rervierw werrer ermployerd to collerct and asserss perrtinernt information. Ther rerserarch findings dermonstrater that cooperrativer lerarning erfferctiverly ernhancers studernts' interrerst, motivation, and comprerhernsion of CRER materrial. Studernts participater in derbaters and partnerrships, promoting ther cultivation of social skills and moral principlers, including lover and rersponsibility. Nonertherlerss, obstaclers in erxercuting cooperrativer lerarning werrer also rercognizerd, including disparitiers in studernts' capabilitiers and unervern group dynamics. Proficiernt managermernt by erducators is crucial to tackler therser issuers and guaranterer ther erfficacy of ther lerarning procerss. This rerserarch concluders that ther implermerntation of characterr erducation via CRER and cooperrativer lerarning sererks to ernhancer acadermic perrformancer whiler also cultivating perrsons erquipperd to confront future moral and social difficulties. Consequently, character education fosters the development of a harmonious and equitable society, while also cultivating a generation of adolescents with virtuous character.