Both models significantly improved resident confidence (sponge, P = 0.017; tongue, P = 0.016) and knowledge (60% correct before intervention vs. 92% correct after intervention, P < 0.001). There was no difference detected between the 2 models. All participants preferred the tongue model to the sponge model. When performing both models, performing the tongue model after the sponge model resulted in a further increase in confidence (P = 0.008) CONCLUSIONS: Both models are excellent tools to aid in resident teaching of obstetric anal sphincter repair and significantly increase residents' knowledge and confidence.