Below are all eight pentatonic scales with their corresponding lower and upper complementary scales, and their combined seven-note scales. They have been arranged so that all pentatonic scales starting with a major step scales appear together (fig. a) separated from all pentatonic scales starting with a minor step (fig. b). This arrangement doesn’t follow the traditional classification where major step rows are usually displayed together regardless of the type of pentatonic scale it yields, but I find this classification easier to teach and learn.