Science Strand: SCI.III.2.1 Grade: 5 Using Scientific Knowledge in Life Science Standard: Organization of Living Things - All students will use classification systems to describe groups of living things Benchmark: Compare and classify organisms into major groups on the basis of their structure Constructing and Reflecting: SCI.I.1.1 - Generate scientific questions about the world based on observation. SCI.I.1.5 - Use sources of information in support of scientific investigation. SCI.II.1.1 - Evaluate the strengths and weaknesses of claims, arguments, or data. Vocabulary / Key Concepts Context Characteristics used for classification: • vertebrates/invertebrates • cold-blooded/warm-blooded • single-cell / multicellular • flowering / nonflowering Representative organisms: • dog • worm • snake • Amoeba • geranium • bacterium • insect • mold Groups of vertebrates • mammals • birds • fish • reptiles • amphibians Observation tools: • hand lens • microscope Knowledge and Skills Compare and classify organisms into major groups on the basis of their structure. Resources Coloma Resources: Amazing Animal Facts – DK Pub. 2003 – Whole book Other Resources: • Michigan Teacher Network Resources • Scope Unit – Cell Theory and Biological Organization (Sixth) • The Budding Botanist. AIMS. http://wwws.aimsedu.org/aimscatalog/ default.tpl • Exploring Environments. AIMS. http://wwws.aimsedu.org/aimscatalog/ default.tpl • Project WILD. http://www.projectwild.org/ • Unique U. AIMS. http://wwws.aimsedu.org/aimscatalog/ default.tpl Videoconferences Available For more information, see www.remc11.k12.mi.us/dl or call Janine Lim 471-7725x101 or email jlim@remc11.k12.mi.us III.2.MS.1 Classification from the Cincinnati Zoo Animal Classification from the Columbus Zoo Classification Series from the Indianapolis Zoo Animal Classifications from the San Diego Zoo Instruction Students need several experiences classifying organisms in order to understand better the key scientific concepts of diversity and unity of living things. • Each student should be given a similar set of 15-20 pictures of vertebrate and invertebrate animals. • Have them sort the pictures into different groups, according to their own classification system. Have them repeat this process two more times, using different classification rules each time. • Students will record each sort on paper, give each group a title and list common characteristics they used to classify these organisms. • Pair students and have them share their data. The team will use their data to select a system that they think will work best. • Continue combining pairs of students and have them share their method until the entire class agrees upon one system. • Discuss, as a class, the titles and identify characteristics for each group. Students should become familiar with terminology contained in the key concepts. They should be introduced to more formal classification systems, such as a dichotomous key (a tool used by scientists to classify organisms). Assessment Students will classify a variety of organisms into groups according to their structure. Students will use the following categories: • vertebrate/invertebrate • categories of vertebrates: • mammals • birds • fish • amphibians • reptiles • single-celled/multi-cellular • flowering/non-flowering These categories could be used in class games such as Jeopardy or Concentration. Scoring Rubric (give rubric to students prior to activity) Criteria: Correctness of classification: Apprentice - Classifies with 60%-69% accuracy. Basic - Classifies with 70%-79% accuracy. Meets - Classifies with 80%-99% accuracy. Exceeds - Classifies with 100% accuracy. Criteria: Identification of common characteristics Apprentice - Lists one common characteristic for each category. Basic - Lists two common characteristics for each category. Meets - Generalizes several key characteristics for each category. Exceeds - Compiles a detailed description of common characteristics for each category. Teacher Notes: “Animals and plants have a great variety of body plans and internal structures that contribute to their being able to make or find food and reproduce. Similarities among organisms are found in internal anatomical features, which can be used to infer the degree of relatedness among organisms. In classifying organisms, biologists consider details of internal and external structures to be more important than behavior or general appearance.” (BSL) The middle school classification benchmark does not require students to be able to name or classify organisms into the major kingdoms, or to explain the difference between plant and animal cells. These two ideas are included in the corresponding high school benchmark (III.2.HS.1). Students are not responsible for knowing the difference between bacteria and viruses, or among various types of single-celled organisms: The organisms listed in the real-world contexts are only examples to be used in instruction, not organisms that students must commit to memory. Focus Question: Using a variety of classification systems, how can we classify different groups of organisms?