Framework for Teachable Tidbit Intersections of Biology and Physics Group Members: Amy, Erin, Jennifer, Joy, Kathleen, Stephanie, and Sierra (facilitator)

Framework for Teachable TidbitIntersections of Biology and PhysicsGroup Members: Amy, Erin, Jennifer, Joy, Kathleen, Stephanie, and Sierra (facilitator)Who? 25 biology majorsWhat? Conceptual Physics courseWhere? Midway through course

Learning Goals and Intended Outcomes/ObjectivesWho? 25 biology majorsWhat? Conceptual Physics course

Learning Goal: Understand howa chemical battery works.

Learning Objectives: Identify key features of a battery.Draw and label a battery and describe how it works.Develop and explain an analogy of how a battery works to a concept in biology.

2AssessmentSummative AssessmentsFor our tidbitCreate a 3-D model of the analogy and explain how it works like a battery.

Other possibilitiesCreate a poster of your groups analogyExamResearch paperGiven specific materials, make a battery that will light up an LEDResearch, design and create a battery out of new materials (no lemons or potatoes)

Activities and Formative Assessments

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Questions from ReadingWhy does a battery need an anode? a cathode? an electrolyte? a wire + bulb? 4Think, Group, ShareWhat would your life be like if you didnt have batteries?5Complete the PuzzleAssemble 4 piecesMatch labels and descriptions to each pieceDraw arrow(s) indicating the flow of electronsDiscuss separation of charge and potential6Objective: Identify key features of a battery.AA Dry Cell BatteryWith your neighbor:Research a AA dry cell battery, adifferent form of a chemical batteryCreate a sketch on your whiteboard, labeling key features (& compare to puzzle)Compare your sketches with your group

7Objective: Draw and label a battery and describe how it works.Human Battery

8The Matrix, 1999Propose a Biological Analogy to a BatteryIn your group:Brainstorm possible analogiesSelect one for your final projectCreate a sketch on your whiteboard as a rough draft for your 3-D modelShare9Objective: Develop and explain an analogy of how a battery works to a concept in biology.Next Step: Final ProjectIn your group:Create a 3-D model of the analogy youve proposed and explain how it works like a battery.10Objective: Develop and explain an analogy of how a battery works to a concept in biology.

Summative Assessments

For our tidbit

Create a 3-D model of the analogy and explain how it works like a battery.Other possibilitiesCreate a poster of your groups analogyExamResearch paperGiven specific materials, make a battery that will light up an LEDResearch, design and create a battery out of new materials (no lemons or potatoes)

11Batteries12

Transform chemical energy into electrical energyElectrodes made of two differentmetals, immersed in an electrolytesolution (e.g., a dilute acid)Acid dissolves the zinc electrode;each zinc atom leaves 2 electronsbehind & enters the electrolyte asa positive ion (zinc negative)Electrolyte becomes positive; attracts electrons from carbon electrode (carbon positive)End result: a potential difference between electrodesLearning GoalUnderstand how a chemical battery works.

13Learning ObjectivesIdentify key features (electrodes, electrolyte, separation of charge, connecting wire, etc.) of a battery.Draw and label a battery and explain how it works.Develop and explain an analogy of how a battery works to a concept in biology.14