You need to research the life cycle of an amphibian. This might give you a clue about the animal that you have found. Go to all of the following websites. Draw the life cycle of an amphibian at each stage and color it using colored pencils or crayon. You must also include three written facts about each life stage on your diagram/drawing.
Life Cycle of Frogs http://www.kiddyhouse.com/Themes/frogs/lifecycle.html
http://www.tooter4kids.com/Frogs/life_cycle_of_frogs.htm
http://www.allaboutfrogs.org/weird/general/cycle.html