Amphibians

Amphibian Lesson180223_1804527801542_1490303688_1924226_5912687_n

Objective:  Help children learn some of the traits for amphibians and compare to other animals.  (You may want to organize your amphibian theme activities into 2 lessons.)

Preparation:

  • Find drawings or pictures of frogs, toads and salamanders from books, magazines or old calendars.
  • Cut sheets of legal size papers in half lengthwise and accordion fold it them into 4 sections. Have crayons, pencils or markers for the children to draw with.
  • Gather materials: Paper plates; Green, red and white construction paper; Watercolor paint and glue.  (Optional second day activity.  Paint the paper plate green on the first day.)
  • Find a book to read about the life cycle of a frog. Some excellent books are:     Tadpole to Frog by Jan Kottke    Fantastic Frogs by Fay Robinson   The Big Wide-mouthed Frogby Ana Martin Larranaga

Lesson:

What is an amphibian?

  1. Amphibians are animals that metamorphose from a water animal to a land animal.
  2. Amphibians include frogs, toads and salamanders. Show pictures and discuss differences
  3. Toads have dry, warty skin, while frogs have smooth, wet skin.
  4. Frogs have tiny teeth on both upper and lower jaws, while toads do not have teeth.
  5. Frogs have longer hind legs than toads. So frogs jump, while toads hop.
  6. Salamanders have a long body and a tail. Frogs and toads are shorter and have no tail.

Define metamorphosis and discuss.  Change of physical form

Discussion questions:

  1. What information about amphibians did you like the most?
  2. What are the main differences between a frog and toad?
  3. What is a tadpole?
  4. What other animals change or go through metamorphosis? Butterflies
  5. Where does a tree frog live? In the trees of the rain forest.
  6. Where does a bull frog live? In freshwater ponds, lakes and marshes.

Read a book and discuss each stage of the life cycle:

  1. Eggs.
  2. Tadpoles have gills, similar to fish, covered and protected by a flap of skin. As they continue to develop, their hind legs form and grow. Then their tail begins to shrink and the front legs appear.
  3. Soon the gills are gone, and the tadpole begins to breathe air at the surface, with his brand new lungs.
  4. Soon after transforming into froglets or toadlets, they begin life out of the water and start eating insects.

Activities:

  • The Frog Life Cycle Book  Accordion fold a half sheet of legal size paper into four pages. Label each page as follows: Eggs; Tadpoles; Tadpoles with legs; Adult or Frog. Write “Frogs” on the front for the title.  Have the child draw a picture to go with each stage.  Have the child write their names on their book.
  •  180256_1804569002572_1490303688_1924292_615909_n180136_1804559362331_1490303688_1924268_6525317_n
  • Frog Puppet  Watercolor a paper plate green and let dry. Fold plate in half and cut out four long legs and glue them in the middle of the plate. Cut a red tongue to place between the legs. For eyes cut two place half circles and two white circles these are glued on for the eyes on the front of the frog. You can make the frog rib-bit by pressing down on the folded plate.

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