1. Department of Mathematics and Science Classification of Animals SC.3.L.15.1 Mary Tweedy Curriculum Support Specialist Dr. Millard Lightburn Elementary Science Supervisor

2. Department of Mathematics and Science Benchmarks SC.3.L.15.1 - Classify animals into major groups (mammals, birds, reptiles, amphibians, fish, arthropods, vertebrates and invertebrates, those having live births and those which lay eggs) according to their physical characteristics and behaviors. (Cognitive Complexity: Moderate) SC.5.N.2.1 Recognize and explain that science is grounded in empirical observations that are testable; explaining must always be linked with evidence. (Cognitive Complexity: Moderate)

3. Department of Mathematics and Science Classification Do you collect baseball or Pokemon cards? How about rocks or CD’s? If so, you probably organize the items to make them easy to find. Scientists have a system for keeping track of millions of different organisms that live on Earth. They classify, or organize, the organisms into groups based on similar characteristics.

4. Department of Mathematics and Science How do Scientists Classify Animals? Write down a list of as many animals as you can name in one minute. Look over the list. What information about these animals might scientists use to classify them? What body covering do they have? Do they have a backbone? How do they breathe? In the reading, Classifying Animals, we’ll look at how and why animals are classified intoClassifying Animals groups.

5. Department of Mathematics and Science What are the two main groups that scientists classify all animals into? Vertebrates Backbone Skeletons inside their bodies, help them stand and move around Examples: giraffe, people, Dog, shark, bird, fish Invertebrates No backbone Some have: Skeletons onside their body Grow shells No hard parts in or outside of their body Examples: beetle, snail, worm

6. Department of Mathematics and Science Look at the animals in these pictures. Separate them into two groups based on something they have in common. How did you group the animals? Did you sort them by size? Maybe you sorted them by color or where they live. Let’s find out how a scientist sorts different animals into groups. SharkWolfbutterfly crab

7. Department of Mathematics and Science Exploration: Animal Classification Vertebrates Invertebrates

8. Department of Mathematics and Science More on VertebratesVertebrates How can vertebrates can be classified into groups? By… skin covering how they reproduce how they maintain body temperature characteristics of their limbs (arms and legs, or their equivalent such as wings or fins)..

9. Department of Mathematics and Science What are the 5 Groups of Vertebrates?5 Groups 1.Fish 2.Amphibians 3.Reptiles 4.Mammals 5.Birds

10. Department of Mathematics and Science Fish Lives in water Have wet scales Breathe with gills Some lay eggs in water

11. Department of Mathematics and Science Amphibians Lives on land and water Have moist skin Lay jelly coated eggs in water

12. Department of Mathematics and Science Reptiles Have dry scales Lay leathery shelled eggs Cold blooded

13. Department of Mathematics and Science Mammals Have hair and produce milk Give birth to live offspring (no eggs) Warm blooded

14. Department of Mathematics and Science Birds Have feathers and hollow bones Lay hard shelled eggs Warm blooded

15. Department of Mathematics and Science What are you wondering now? 1. Why is a whale classified as a vertebrate? 2. Compare and contrast a frog and a toad.

16. Department of Mathematics and Science Summary of Vertebrates

17. Department of Mathematics and Science CHARACTERISTICS OF THE FIVE TYPES OF VERTEBRATES How It Breathes Body Covering Born Alive or Lays Eggs Warm or Cold Blooded Another Distinctive Feature Amphibians Birds Fish Mammals Reptiles

18. Department of Mathematics and Science Venn Diagram

19. Department of Mathematics and Science Compare and Contrast

20. Department of Mathematics and Science Is it True? AmphibiansReptilesFishBirdsMammals 1.Have a backbone 2. Have scales 3. Have smooth skin 4. Breathe with gills 5. Breathe with lungs 6. Have fur or hair 7. Have feathers 8.Lay eggs with hard shells 9. Feed milk to babies

21. Department of Mathematics and Science More on Invertebrates ArthropodsArthropods are the largest group of invertebrates What do they all share in common? Jointed legs or limbs Hard body covering that forms an outer skeleton Examples include centipedes, millipedes, spiders, mites, horseshoe crabs, scorpions, crustaceans (lobsters) and insects

22. Department of Mathematics and Science Why are animals grouped into different categories? Answer: They are grouped into different categories because they use different types of physical features to carry out the activities they need to live. For example, birds are grouped together because they have wings, feathers, and beaks, while fish are grouped together because they have fins, scales, and mouths. Why are arthropods grouped together?