By this one can able to see or identifying the similarities and difference between the same looking objects or things. It can be observed that if any object looking different from others called as odd one out and separate it from others to make them all similar. For example in a raw if there are one elephant and seven tigers. Then this one elephant will be odd one out and if we don’t allow the elephant in that raw, that will be similar because all will be tigers. This activity sometime becomes difficult because same kind of object have to compared.