Toad is shorter and stout with a brown shade, and while just as caring and friendly as Frog, is also the more serious and uptight of the duo; Frog is taller with a green shade and is more cheery and relaxed than Toad; Toad is shorter and stout with a brown shade, and while just as caring and friendly as Frog, is also the more serious and uptight of the duo. On the Double Bubble Map, the difference between Frog and Toad may be easily seen. The Double Bubble Map is a technique for identifying similar and dissimilar places. A double bubble map aids pupils in comprehending the many types of descriptors or category concepts. People can use similarity and difference to think critically about material they haven't yet studied.