Over the years, there are incessant cases of antisocial vices in almost every nook and cranny of the country such as cultist attack, suicide, armed robbery, kidnapping, among others. The upsurge of immoral behaviours among Nigerian youth has posed a lot of hazards to the youths themselves, parents, the teachers and the society in general. The religious men and women that were hitherto seen as the fountain of moral up-bringing and upkeep are not left out in this alarming rate of immorality that has besieged the entire nation. In the face of all these immoral behaviours and its attendant consequences, it becomes clear that development is marred heavily by these unwholesome attitudes due to the neglect and/or skeletal teaching of this essential tool for national development. This gaunt teaching of ethics and moral education is among the causes of moral dissipation predominant among Nigerian students which has transcended to the larger society. This moral debauchery has resulted to lack of respect for elders and constituted authority, teenage pregnancy, violence, suicide, indolence, wanton killings,armed robbery, insurgence and so on. In the light of the above expressions, this paper tries to diagnose the teaching of ethics and morality education for sustainable development in Nigerian educational system in respect of the concept of ethics and morality, types of ethics, causes of moral degradation, duties of the parents and teachers in imparting morality and ethics to the Nigerian students as well as the challenges facing the teaching of this an all essential subject that stands to cushion the effect of sustainable development in the nation Nigeria. It is therefore recommended that ethics and moral education be made a compulsory subject and given three or four periods on weekly bases at primary and secondary levels of education while a period be allotted for it at the tertiary level if sustainable development has to be attained. More so, efficient and effective curriculum and teaching of ethics and moral stand to facilitate the moulding up an educated individual worthy both in character and learning that will make for sustainable development, meet and even surmount 21st century development challenges.
Keywords: Teaching, Ethics, Moral, School, Sustainable, Development.
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