Boom Cardsâ„¢ are a great way for students to practice and assess their understanding of Triangle Sum Theorem. This set of Boom Cards features 135different Digital Self-Checking Cards. (No printing, cutting, laminating, or grading!)Students will use their knowledge of Triangle Sum Theorem, Exterior Angles Theorem, Parallel Lines and Transversals, Linear Pairs and Vertical Angles to solve large multiple and overlapping triangle diagrams.These cards are hosted on Boom Learningâ„¢ site which will provi