UNIT COVER PAGE Chem/Phys School District: Bremen Dist. 228 Department: Science Course: Chem/Phys Unit Title: Periodic Table Grade Levels: 11-12 Topic Areas: A. Atomic Structure & History Time Frame: 2 weeks Date Created: 3/5/05 Date Modified: Craig Cappel, Mike Collins, Bill Kane, Grace Miller, Linda Griffin, Paul Unit Designer(s): Switzer, Ron Czarnecki Link to State Standards 12.11.38 12.11.45 12.11.46 Know that atoms are made of sub-atomic particles (protons, neutrons, electrons) which have positive, neutral, or negative charges. Understand that the periodic table displays the elements in increasing atomic number and shows how periodicity of the physical and chemical properties of the elements relates to atomic structure. Understand that the nucleus of the atom is much smaller than the whole atom yet contains most of its mass. Understand isotopes. Understand that transuranium elements were not discovered in nature but synthesized through the use of nuclear accelerators. Link to Department Learner Program Outcomes (LPO) 5.10.1.1 5.11.1.1 2.10.1.1 TLW understand the terminology of science. TLW understand how science affects everyday life and/or current societal issues. TLW recognize how technological, environmental, and/or biological concepts impact contemporary life. Summary of Unit Resources Key Words 1
STAGE 1: IDENTIFY DESIRED RESULTS Enduring Understandings Students will understand that Essential Questions there are three basic subatomic particles in an atom atoms differ from each other and have their own unique identity. years of historical events led to the understanding of atoms and the development of the periodic table energy created through fission produces electricity. Why does each element have its own unique spectrum? What is an atom made up of? Where are the three subatomic particles found? What makes atoms unique? Who were the major contributors to the modern atomic theories? (Rutherford, etc.) Knowledge and Skills Students will know properties, names, location and charge of subatomic particles atomic numbers and mass isotopes and ions law of conservation of matter scientist s experimental evidence an electron falling from an energy level will emit specific spectra of light basic decay of elements Students will be able to draw atoms using atomic mass and number determine the number of protons, neutrons, and electrons explain why the atom is neutral understand chain reaction identify an element from its spectra and/or identify atoms in flame tests. Students will be familiar with Dalton s atomic theory historical figures and events electromagnetic spectrum 2
STAGE 2: DETERMINE ACCEPTABLE EVIDENCE What evidence will show that students understand? Required Assessments (brief description) Construct a model of an atom from an assigned element showing the number of protons and neutrons, as well as the number of electrons on where they exist in relation to the nucleus. Other Assessments (brief description) Timeline of the Atomic Theory Quizzes Exams Daily warm-ups 3
Learning Activities PLAN LEARNING EXPERIENCES AND INSTRUCTION What sequence of teaching and learning experiences will equip students to develop and demonstrate the desired understandings? W How will you ensure that all students know where they are headed in the unit, why they are headed there, and how they will be evaluated? Pass out the performance task vignette H How will you hook students at the beginning of the unit? What do you have in common with another person? What do atoms have in common? E What events will help students experience and explore the big idea and questions in the unit? How will you equip them with needed skills and knowledge? Timeline R How will you cause students to reflect and rethink? How will you guide them in rehearsing, revising, and refining their work? Draw atoms of elements labeling the substances, labeling the subatomic particles and charges E How will you help students to exhibit and self-evaluate their growing skills, knowledge, and understanding throughout the unit? Model of an element T How will you tailor and otherwise personalize the learning plan to optimize the engagement and effectiveness of ALL students, without compromising the goals of the unit? Create a model or poster working individually or in pairs O How will you organize and sequence the learning activities to optimize the engagement and achievement of ALL students? Subatomic particles discovery/history isotopes periodicty Dalton s atomic model? 4
Essential Questions at Topic Level Use the six facets of understanding to generate possible essential questions for the topic of your three-circle audit (curricular priorities). Explanation Interpretation What makes atoms unique? What is an atom made up of? Application What are the three subatomic particles found? (Topic Area) Atomic Structure & History Empathy Perspective Self-Knowledge How do you design an experiment to test a hypothesis? Who were the major contributions to the modern atomic theory? 5
Student Performance Task Unit: Periodic Table Atomic Structure & History Task: Explanation Course: Chem/Phys Time Frame: 2 Periods Overarching Understanding: Students will understand that science is not just a body of knowledge. It is a process by which many people continuously develop and refine our knowledge of the world around us. Enduring Understanding: Students will understand that atoms differ from each other and have their own unique identity. Essential Question: What is an atom made up of? Vignette: You are a scientist working in the late 1800 s, and you have just discovered another element. It is your goal to present your findings to the scientific community. In order to prepare for your presentation, you must develop a visual aid (poster or model) to share your information. Be sure to include the standards below. Standard: You will be graded with the following rubric: Label the correct number of protons and neutrons in the nucleus (3, 3 6 total points) Have the correct number of electrons in each energy level (3, 3 6 total points) Each energy level should be the appropriate distance away from the nucleus (3 points) Background describing where your element is found in nature and common uses (at least two) (3 points) Clearly visible on model or poster board (2 points) 6
Performance Task Blueprint Unit: Periodic Table Type: Explanation Topic Area: Atomic Structure & History Time Frame: 2 Periods Goal Construct a model of an atom based on a specific element. Role You are scientist in the late 1800 s. Audience The scientific community Situation You have discovered another element and you would like to present your findings, using a model, to the scientific community. Product or Performance Make a 3-D model or poster board of an atom to an assigned element. Your model must meet the following standards: Standards Label the correct number of protons and neutrons in the nucleus (3, 3 6 total points) Have the correct number of electrons in each energy level. (3, 3 6 total points) Each energy level should be the appropriate distance away from the nucleus. (3 points) Background describing where your element is found in nature and common uses. (at least two) (3 points) Clearly visible on model or poster board. (2 points) 7