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Unit 2 Diversity of Life
Chapter 11 Fish, Amphibians, and Reptiles
Section 3 Amphibians


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Created  12/23/2002

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Teacher Resources     Student Extra Credit 

11-3 Amphibians
What is an Amphibian?
Frogs & Toads
Salamanders & Newts
Caecilians (legless)
Living on Land

Day 1  Amphibians: Eyewitness Video	Day 5 Frog Futures Game
Day 2 Prentice Hall 382-386 RSG 11-3 Amphibians	Day 6-9  Frog Dissection PowerPoint   Frog Sandwich
Day 3 Frogs: Reproduction, Anatomy, and Malformed Frogs The Last Frog on Safari Montage	Day 10-11    Frog Dissection
Day 4 Frogs: Anatomy& and Malformed Frogs Comapring Amphibans Using a Venn Diagram	Day 12 Dissection Evaluation
	Day 13 Test: Fish & Amphibians

Day 1

Topic  Amphibians

Objectives Introduction to Amphibians

State Goals 12.A.1a  Identify and describe the component parts of living things and their major functions. 13.A.1c  Explain how knowledge can be gained by careful observation.

Classwork-Homework  Amphibians Eyewitness Video 35 minutes Amphibian Video Questions

TEC

Resources

Day 2

Topic 11-3 What are amphibians?

Objectives Define amphibian. List the three orders of amphibians. List six characteristics of amphibians. Discuss the characteristics of amphibians. Identify amphibians as vertebrates that can live on land for part of their entire lives.

State Goals 12.A.1a  Identify and describe the component parts of living things and their major functions.

Classwork-Homework   On the Board Amphibian animal that lives part of its life in water and part on land  In Greek amphibian means "double life" On the Board Three Orders of Amphibians Frogs and Toads Salamanders and Newts Caecilians: legless amphibians   On the Board Six Characteristics of Amphibians Cold blooded Smooth, moist skin (except for toads) Caecilians: legless amphibians Webbed feet Breathe: gills, lungs, and skin Eggs: no shells, laid in water Three-chambered heart: two atria and one ventricle   Amphibian Information  Frog Sounds Prentice Hall 382-386 RSG 11-3 Amphibians

TEC Science Explorer 327 Amphibians Underground

Resources Amphibian Alert  81 pages  Pictures for bulletin board!  Introduction page! 3 slide shows but no info on how to locate the slides

Day 3

Topic  Metamorphosis

Objectives Recognize the characteristics of reptiles. Identify reptiles as vertebrates that can live on land for their entire lives. Explain that amphibians and reptiles are ectotherms. Observe and describe characteristics of eggs. Students will follow the life cycle of a frog and become aware of some of the threats it faces as it matures.

State Goals 12.B.3a  Identify and classify biotic and abiotic factors in an environment that affect population density, habitat and placement of organisms in an energy pyramid. 12.B.3b Compare and assess features of organisms for the adapatative, competitive, and survival potential.

Classwork-Homework On the Board Larva: immature stage of many animals that usually looks different than the adult form Tadpole: larval stage of a frog Metamorphosis: changes during the stages of development of an organism. On the Board Two Groups That Change: Insects and amphibians Far Out Frogs from Naturescope The Last Frog on Safari Montage

TEC Tadpole Metamorphosis

Resources Frog Game Frog Steps Game      Spinner      Gameboard

Day 4

Topic Frog

Objectives 12.B.3a  Identify and classify biotic and abiotic factors in an environment that affect population density, habitat and placement of organisms in an energy pyramid. 12.B.3b Compare and assess features of organisms for the adapatative, competitive, and survival potential.

State Goals 12.B.3a  Identify and classify biotic and abiotic factors in an environment that affect population density, habitat and placement of organisms in an energy pyramid. 12.B.3b Compare and assess features of organisms for the adapatative, competitive, and survival potential.

Classwork-Homework Frogs from Minnesota Pollution Control Built for Survival  Amphibians slide show. Deformed Frogs Malformed Frogs in Minnesota Frequently Asked Questions About Deformed Frogs Venn Diagram comparing Frogs & Toads, Salamanders, and Caecillians

TEC

Resources

Day 5

Topic  Frog Populations

Objectives Describe environmental changes that can affect the size of a population.

State Goals 12.B.4b  Simulate and analyze factors that influence the size and stability of populations within ecosystems.

Classwork-Homework The Case of the Missing Anurans Frog Futures Game          Frog Futures Data Chart

TEC

Resources

Day 6

Topic  Directions to Frog Sandwich

Objectives Learn the organs and systems of the frog. Draw and label digestive system of the frog.

State Goals 12.A.1a  Identify and describe the component parts of living things and their major functions.

Classwork-Homework  Frog Dissection PowerPoint This takes you to an index. Choose sp06 Frog Dissection ppt. Save to your computer.   Frog Sandwich: Digestive System Use Biology Coloring Pages as a reference. 1 Draw digestive system on frog outline. Only organs with stars. 2 Color the organs. 3 Outline the organs. 4 Label the organs. DO NOT CUT OUT UNTIL ALL FOUR SYSTEM OUTLINES FINISHED 5 Repeat 1-4 for respiratory system. 6 Repeat 1-4 for circulatory system 7 Repeat 1-4 for urogenital system.  Your choice: male or female frog For extra credit add a blank frog page to your Frog Book.  Call it Frog Facts. Include information on frogs, names of frogs, and interesting facts. 8 Carefully cut out all the outlines.  9 Cut out two green construction paper frogs for cover of book 10 Put Frog Sandwich together and staple. 11 Title and your name on cover.  Add frog camouflage pattern for 5 points extra credit. Draw, color, outline, and label organs of frog's digestive system.

TEC

Resources Frog Sandwich Student Pages Student Instructions Teacher Directions

Day 7

Topic  Frog respiratory system

Objectives Draw, color, outline, and label organs of frog's respiratory system.

State Goals 12.A.1a  Identify and describe the component parts of living things and their major functions.

Classwork-Homework   Frog Sandwich Draw, color, outline, and label organs of frog's respiratory system.

TEC

Resources

Day 8

Topic  Frog Circulatory system

Objectives Draw, color, outline, and label organs of frog's circulatory system.

State Goals 12.A.1a  Identify and describe the component parts of living things and their major functions.

Classwork-Homework   Frog Sandwich Draw, color, outline, and label organs of the frog's circulatory system.

TEC

Resources

Day 9

Topic  Frog Urogenital system

Objectives Draw, color, outline, and label organs of frog's urogenital system.

State Goals 12.A.1a  Identify and describe the component parts of living things and their major functions.

Classwork-Homework   Frog Sandwich Draw, color, outline, and label organs of the frog's urogenital system.   Frog Dissection Coloring Page

TEC

Resources

Day

Topic  On line frog dissection

Objectives View pictures of frog organs. Record organ names.

State Goals 12.A.1a  Identify and describe the component parts of living things and their major functions.

Classwork-Homework   Use the Frog Morphology and Physiology Tutorials to write down the organs that correspond to each numbered structure.  Record answers on Frog Worksheet .

TEC

Resources

Day  BLOCK SCHEDULE

Topic  Frog Dissection  2 Periods

Objectives Identify external characteristics of a grass frog. Identify internal organs of the frog's mouth. Locate and identify the internal organs of the frog. Record information.

State Goals 13.B.1a Explain the use of common scientific instruments.

Classwork-Homework Use  Frog Dissection Checklist to evaluate the dissection as the kids work.                    **Only use if having block time.  Not enough time for only one period. On the Board     Frog Dissection 1 Station setup. Drawing on board. 2 Check stations for dissecting tools. List on board. 3 Pass out Frog Dissection Worksheets. Go over. 4 Get gloves and goggles. 5 Receive frog. 6 Complete Frog Dissection Worksheets. 7 Extra Credit if time: thighbone, eyeball, brain, and spinal cord 8 Clean up:                        1. Throw away frog, body parts, and used paper towels.                        2. Set up station: Look at board.                        3. Throw away gloves.                        4. Return goggles                        5. Turn in Frog Dissection Worksheets 9 Wash hands.

TEC

Resources Frog Dissection Transparencies  Frog Brain Dissection Frog Urogenital and Brain Worksheet Alternative to Frog Dissection

Day 10-11

Topic Frog Dissection

Objectives Learn the names of dissecting equipment. Identify the anatomy of a frog.

State Goals 13.B.1a Explain the use of common scientific instruments.

Classwork-Homework Frog Dissection Day 1: Outside observation Day 2: Internal Investigation

TEC

Resources Frog Dissection Transparencies  Frog Brain Dissection Frog Urogenital and Brain Worksheet

Day 12

Topic  Frog Evaluation.

Objectives Evaluate frog dissection. Evaluate knowledge of fish. Evaluate knowledge of amphibians.

State Goals 12.A.1a  Identify and describe the component parts of living things and their major functions.

Classwork-Homework    Frog Dissection Evaluation   The Ultimate Frog Anatomy Review

TEC

Resources

Day 13

Topic  Test on Fish and Amphibians

Objectives Evaluate knowledge over fish and Amphibians

State Goals 12.A.1a  Identify and describe the component parts of living things and their major functions.

Classwork-Homework   Test on Chordates, Fish, and Amphibians

TEC

Resources

Teacher Resources

Assignment     Labs        Art Activity    Lesson Plan      _Tests   PPT Maps     Resources     Web Sites     _Field_Trips Computer      Book      Games    Extra Credit

AMPHIBIANS

The Puzzle of Declining Amphibian Populations

Frog Futures Game

Alberta Amphibian Monitoring Program   71 pages  Information, Frog Dilemma p.10, Meeting Amphibians p.15, Amphibian labels p.21, Frog or Toad p.24, Amphibian Designs p.25, Amphibian Measurements p.43, 4 Frog Coloring Sheet p.51, Frog Jokes p.62.

Amphibian Alert PowerPoint

Amphibian Jeopardy   Link takes you to an index.  Choose Amphibian Jeopardy Tucker.ppt  This index has many amphibian activities. Check it out.

Ammonite Egg    Amphibians had to return to water to lay eggs.  Reptiles were the first group to live completely on the land.  The ammoniate egg allowed them to place their eggs on dry land, the water (amniotic fluid) was IN  the egg.

Amphibian Information

Amphibians  Links from NetVet for Frogs and Toads and other Amphibians

Great Lakes Declining Amphibians Working Group   The Great Lakes Declining Amphibians Working Group is a Regional Working Group of the IUCN/SSC Declining Amphibian Populations Task Force (DAPTF), devoted to investigating the worldwide decline in amphibian populations. DAPTF publishes the newsletter FROGLOG . Regional working groups promote research and education, and act as information clearing houses.

DISSECTION

Frog Brain Dissection

Frog Dissection Worksheets       Frog Dissection Checklist

Virtual Frog Dissection   You can interactively dissect a (digitized) frog named Fluffy, make movies, and play the Virtual Frog Builder Game.

Frog Dissecting: An Alternative  Web Quest

FROGS

Use the Frog Morphology and Physiology Tutorials to write down the organs that correspond to each numbered structure.  Record answers on Frog Worksheet.

Help Scientists Collect Frog Data  Canadian site.  Good fact sheets on frog species.

The Case of the Missing Anurans

Color Me Frog

Frog Coloring Pages

Frogs For Kids Coloring Book   Tree Frogs, Green Frogs, Mink Frog, Leopard Frog, Spring Peeper Frog, Western Chorus Frog, Wood Frog

Croak   New town. New job. Tough boss.  Suddenly it's up to you to find out why extinction threatens the celebrated frogs in the town park.  An Access Excellence Science Mystery.

Exploding Frog Skeleton

Frog Images    Pictures of frog species.  Click on the picture to enlarge.

Frog Morphology and Physiology Tutorials   Images that are designed to help you review what you learned during the dissection of the frog.

Frog Watch, USA   Welcome to Frogwatch USA. This Web site is the Internet presence of an educational frog and toad monitoring program coordinated by the US Geological Survey Patuxent Wildlife Research Center.  Frogwatch USA relies on volunteers, like you, to collect information regarding frog and toad populations in neighborhoods across the nation.  Please explore the Web site and see if you would like to become a Frogwatch USA volunteer.

Frogs   The Frogs exhibition ran at the Exploratorium in San Francisco from February 13, 1999 through February 6, 2000. Here online, you can still enjoy our frog articles, interactive exhibits and hands-on activities.

North American Bullfrogs   Photos and detailed facts about these cannibalistic frogs that will not hesitate to eat their own kind.

Poison Dart Frogs   From tiny pores in its skin, the frog secretes a defensive toxin that makes it unpalatable to curious predators and which could easily kill if injected into a human or other animal.

Virtual Frog Builder Game

Where Have All the Frogs Gone?

KEYS: GUIDES: CHECKLISTS

Amphibians Key for Idaho  Neat Visual Key

Amphibians of Aquatic Illinois   Information on the bull frog, spotted salamander, and mud puppy.

Checklist of Amphibian Species and Identification Guide   An online guide for the identification of amphibians in North America and Mexico

Amphibians Found in Texas

OnLine Amphibian Identification Key    Identify amphibians by clicking on pictures.

NEWTS

Central Newt  Features, history, and range.

PETA

Alternatives to Dissection

SALAMANDERS

Barton Springs Salamander  Features, history, and range.

Dwarf Salamander  Features, history, and range.

Japanese Giant Salamander   The salamander is a timid, harmless animal that looks like a lizard but is related to frogs and toads. It is a type of amphibian.

Marbled Salamander   Cool facts on this creature's looks, habitat, diet, and habits.

San Marcos Salamander  Features, history, and range.

Texas Salamander   Features, history, and range.

Student Extra Credit

Extra Credit

Alternative to Frog Dissection   You will explore web sites about frog anatomy and construct a journal that chronicles your explorations.

Ammonite Egg  Read the article, color the diagram, and answer the questions.

Frog Facts   For extra credit add a blank frog page to your Frog Book.  Call it Frog Facts. Include information on frogs, names of frogs, frog sayings, and interesting frog facts.

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