The State Board of Education shall develop a list of recommended conflict resolution and mediation materials, models, and curricula that address responsible decision making, the causes and effects of school violence and harassment, cultural diversity, and nonviolent methods for resolving conflict, including peer mediation, and shall make the list available to local school administrative units and school buildings. In developing this list, the Board shall emphasize materials, models, and curricula that currently are being used in North Carolina and that the Board determines to be effective. The Board shall include at least one model that includes instruction and guidance for the voluntary implementation of peer mediation programs and one model that provides instruction and guidance for teachers concerning the integration of conflict resolution and mediation lessons into the existing classroom curriculum. ?(2017-126, s. 5.)