This is an 11x17 PDF for a blank Pascal's Triangle for rows 0-19. The hex cell structure is helpful to organize the iterative chain. Good for exploring patterns, teaching about iterative processes, and coloring activities for younger students (try filling in and color coding even and odd, rules of divisibility, or other rules - the patterns are fascinating!) Due to the large size, it can be computed in teams of 2 or 3 to fill in the whole thing. Also good for expanding ridiculously large bino