Vascular anomalies are a spectrum of disorders, including vascular tumors and malformations, that often require multispecialty care. The rarity and variety of these lesions make diagnosis, treatment, and management challenging. Despite the recognition of the medical complexity and morbidity associated with vascular anomalies, there is a general lack of education on the subject for pediatric primary care and subspecialty providers. A needs assessment and the lack of an available standardized teaching tool presented an opportunity to create an educational workshop for pediatric trainees using the POGIL (process-oriented guided inquiry learning) framework. We developed a 2-hour workshop consisting of an introductory didactic followed by small- and large-group collaboration and case-based discussion. The resource included customizable content for learning assessment and evaluation. Residents completed pre- and posttest assessments of content and provided written evaluations of the teaching session. Thirty-four learners in pediatrics participated in the workshop. Session evaluations were positive, with Likert responses of 4.6-4.8 out of 5 on all items. Pre- and posttest comparisons of four content questions showed no overall statistically significant changes in correct response rates. Learners indicated plans to use the clinical content in their practice and particularly appreciated the interactive teaching forum and the comprehensive overview of vascular anomalies. Vascular anomalies are complex, potentially morbid, and often lifelong conditions; multispecialty collaboration is key to providing comprehensive care for affected patients. This customizable resource offers a framework for trainees in pediatrics to appropriately recognize, evaluate, and refer patients with vascular anomalies.