A deficit currently exists in teacher preparation programs for teaching students with Autism Spectrum Disorder (ASD) using evidence-based practices, specifically in the area of Applied Behavior Analysis. As communication deficits are a primary characteristic associated with the diagnosis of ASD teaching communication skills is a common educational goal for students with ASD, and this skill needs to be addressed in teacher education. Mand training is one evidence-based practice applied to teach independent requesting skills to students with ASD. In this study, four teachers serving students with characteristics of ASD in the classroom participated in a multiple-probe across-participants study evaluating the extent to which online training videos prepare teachers in mand training procedures for students with ASD. Concurrent with teacher participants, changes in rates of student mands were evaluated for four students receiving instruction in a multiple probe design. Data analysis consisted of visual analysis of graphically displayed results and calculation of effect sizes. Results indicate that the Online Training Videos (OTV) were not effective as a standalone intervention for preparation of teachers to teach mands, however three student participants showed improved student outcomes.