UNIT COVER PAGE Chemistry

Transcription

1 UNIT COVER PAGE Chemistry School District: Bremen #228 Department: Science Course: Chemistry Unit Title: Chemical Reactions Grade Levels: 10& 11 Topic Areas: Types of equations, balancing, writing equations 4 Weeks Time Frame: (February) Date Created: 1/1/04 Date Modified: 5/12/09 Unit Designer(s): Susan Galloy Link to State Standards 11.A.5c 12.C.5a 13.A.5c Conduct systematic controlled experiments to test the selected hypotheses. Analyze reactions (e.g., nuclear reactions, burning of fuel, decomposition of waste) in natural and man-made energy systems. Explain the strengths, weaknesses and uses of research methodologies including observational studies, controlled laboratory experiments, computer modeling and statistical studies. Link to Department Learner Program Outcomes (LPO) Summary of Unit 5 types of equations, balancing equations and writing equations from words will be reviewed. Resources Types of reactions lab, chemicals, reaction video, quizzes Key Words reactant, product, coefficient, synthesis, decomposition, single displacement, double displacement, combustion 1

2 STAGE 1: IDENTIFY DESIRED RESULTS Enduring Understandings Students will understand that balancing equations supports the law of conservation of mass identifying types of reactions is essential to writing equations from words chemical reactions involve the rearranging of atoms and the breaking and forming of bonds. Essential Questions How do you balance a chemical equation? How do you translate a chemical equation into words? How would you compare and contrast the 5 types of equations? How would you recognize the 5 types of reactions? How can you relate chemical changes and macroscopic properties? How can you critique an equation to determine if it is balanced? Knowledge and Skills Students will know 5 types of chemical reactions Students will be able to balance equations write a balanced chemical equations from words Students will be familiar with reversible reactions 2

3 STAGE 2: DETERMINE ACCEPTABLE EVIDENCE What evidence will show that students understand? Required Assessments (brief description) Types of equation lab which includes writing and balancing equations. Other Assessments (brief description) Quizzes Equation practice problems 3

4 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? H How will you hook students at the beginning of the unit? 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? R How will you cause students to reflect and rethink? How will you guide them in rehearsing, revising, and refining their work? E How will you help students to exhibit and self-evaluate their growing skills, knowledge, and understanding throughout the unit? 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? O How will you organize and sequence the learning activities to optimize the engagement and achievement of ALL students? 4

5 Performance Task Blueprint Unit: Chemical Reactions Type: Self-Knowledge Topic Area: Types of Equations Time Frame: 1 day Goal To identify 5 types of reactions. Role Your are a scientist and need to identify 5 types of reactions. Audience The Scientific Community Situation You re given 5 experiments to perform. Write your observations and balanced chemical equations for each reaction. Product or Performance Your job is to perform 5 experiments and balance and classify each reaction. Standards Correctly identify the 5 types of reactions. 5

6 Student Performance Task Unit IV: Chemical Reactions Types of Equations, Balancing, Writing Equations Task: Self-Knowledge Time Frame: 1 Day Overarching Understanding: Students will understand that matter and energy s behavior on the microscopic level will explain how matter behaves in the macroscopic world. Enduring Understanding: Students will understand that identifying types of reactions is essential to writing equations from words. Essential Question: How would you recognize the five types of reactions? Vignette: You are a scientist in need of identifying several chemical reactions. The scientific community is asking you to report the correct chemical equations for these experiments so that others can duplicate your work. They are not only looking to see the equations, but they are also asking to have the equations balanced. Standard: You must perform the five experiments, classify each reaction and write balanced equations for each. 6

7 ESSENTIAL QUESTIONS AT TOPIC LEVEL Use the six facets of understanding to generate possible essential questions for the topic of your threecircle audit (curricular priorities). Explanation How do you balance a chemical equation? Interpretation How can you critique an equation to determine if it is balanced? Application How do you translate a chemical equation into words? Chemical Reactions Empathy How can you relate chemical changes and macroscopic properties? Self-Knowledge How would you recognize the 5 types of reactions? Perspective How would you compare & contrast the 5 types of equations? 7

8 Creating Possible Performances Performance verb Generalization Performance Possible performances for Chemical Reactions (topic/unit) Facet One: Explanation 1. Balance a chemical equation by selecting between the 2 different methods (algebraically or guess & check). Facet Two: Interpretation 2. Critique an equation by checking your partner s work. Facet Three: Application 3. Translate an equation by going to a word equation. Facet Four: Perspective 4. Compare & contrast the types of equations by explaining general equations. Facet Five: Empathy 5. Relate chemical changes by Facet Six: Self-Knowledge 6. Recognize the 5 types of equations by 8