Hollowell B, McLaughlin TF, Hatch K. The Effectiveness of Model, Lead, and Test Technique with Real Money Coins toTeach Differentiation and Counting to a 16-Year-Old High School Student withMultiple Disabilities. IJEE. 2017;6(1):313-325. Accessed October 8, 2026. https://ijee.org/ijee/article/view/295