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Name_______________________ Sec ______ Date____________________ Partner’s Names_________________________________________________ Circulatory Unit Group Assessment-Building an Artificial Heart Model (30 points) Purpose: Students will work together in teams to connect their knowledge of the circulatory system by designing, building and demonstrating a working artificial “heart” Criteria checklist: Use the following checklist to make sure that you are completing all of the requirements. ___Each of the following structures must be present to demonstrate the flow of blood through the heart and the body. ___ ___ ___ ___ ___ ___ Right Atrium Right Ventricle Left Atrium Left Ventricle Aorta/Vena Cava Pulmonary Artery/ Pulmonary Vein ___ All structures must be properly linked to one another according to their physiological relationship (e.g., the ventricles should not be able to pass “blood” directly between each other. ___ Each “heart” must have a self-contained, sealed and continuously flowing water solution (“blood”), so that no “transfusions” are needed and no “bleeding” occurs when the heart is functioning. ____ The heart must be able to move the “blood”, but does not have to function autonomously (on its own) (i.e., students may produce the necessary forces) ____ Everything (i.e., valves, chamber contractions) must work in the correct order and manner when the model is operating. ____ The structure of the model does need to reflect exact anatomy, but must support proper functioning of the artificial heart. ____ Parts of the working artificial “heart” are labeled and arrows are used to show the correct direction of flowing “blood”. Team Arrangements: Students are to work in teams of three or four. If members of the team are absent, the assignment is still expected to be completed on time. If a member of the team is absent for 2 or more periods; the member will have to design and complete a model on his/her own before or after school Time Frame: 6 Class Periods Period 1: Assessment explanation, team formation, design and gathering of materials Period 2: Construction and Experimentation Period 3: Revisions and practice for presentation of model Period 4: Written Individual Explanation of model and how it compares to an actual heart. Period 5: Group Presentations to peers Period 6: Review packet for written assessment/presentation to teachers Materials that will be available to each team: 4 vinyl examination gloves 1 meter of 5/16 in. plastic tubing Small tube of silicon aquarium sealant or bath caulk (you must wear gloves when using these sealants) 4 clamps If any other materials are needed, speak with me in advance (prior to building) Websites that may be helpful 1. http://www.youtube.com/watch?v=JA0Wb3gc4mE 2. http://abcnews.go.com/Health/HeartHealth/boston-teen-heads-back-school-artificialheart/story?id=18610692&page=2 3. http://www.ucsfhealth.org/treatments/ventricular_assist_device/ 4. http://texasheart.org/HIC/Topics/Proced/vads.cfm 5. http://www.popsci.com/science/article/2012-02/no-pulse-how-doctors-reinvented-humanheart?nopaging=1 Name __________________________ Sec ___ Date ___________________ Partner’s Names ________________________________________________ Building an Artificial Heart Model Rubric (12 pts) Structural Components (each worth 1 point) _____ has four chambers _____ atria chambers are the same size _____ ventricle chambers are larger than atria chambers _____ has 4 valves _____ the placement of the tubing and valves is correct. _____ tube lengths are reasonable given the distance the blood flows from one structure to the next. (example: heart to lungs distance vs. heart to body distance) _____ water (“blood”) is part of the model and does not leave the model. Functional Components: (each worth 1 point) _____The atria contract simultaneously. _____ The valves function correctly. _____ The ventricles contract simultaneously. _____ Valves work to cause water (blood) to flow in one direction. _____ There are no leaks. Total _____/12 pts Name ___________________________________Sec ________ Date____________________ Group members_________________________________________________________________ Individual Student Assessment of Artificial Heart Model Rubric (12 pts) 1. Model Diagram (1 pt each) _____ Neatly drawn and accurate _____ Labeled with correct parts _____ Arrows are correctly drawn to show “blood “flow through the model 2. Heart Diagram (2 pts each) _____ Labeled with correct parts _____ Arrows are correctly drawn to show blood flow 3. Comparison of model and heart (2.5 pts each) _____ Similarities between model heart and actual heart are accurate _____ Differences between model heart and actual heart are accurate Total ____/12 pts Name____________________________________________ Sec ______ Date_________________ Group Members ___________________________________________________________________ Building a model heart assessment presentation requirements Your group will be presenting your model to your peers as well as your teachers. The following are the presentation requirements: The presentation should be no more than 3 minutes in length. Each member of the group needs to contribute to the presentation. Explain and show the parts of the heart included in the model Explain what materials you used for each part and why you this material was chosen Demonstrate your working model and explain the flow of “blood” Name_____________________________ Sec ______ Date_________________ Group Members ____________________________________________________ Building a model heart assessment Presentation Rubric (6 pts) Explanation of model (1 pt each) group grade ___ parts of the heart included in the model ____explanation of materials used in the model. ___ demonstration of blood flow through the model Presentation Skills (1 pt each) individual grade ___ speaks clearly and loud enough for audience to hear ____contributes to the presentation ___ appropriate behavior during presentation Total ___/6 pts Name__________________________________ Sec____ Date_________________ Group members________________________________________________________ Circulatory Unit Group Assessment Building an Artificial Heart Model (30 points) _____/12 points for Structural and Functional Components of model (group grade) _____/12 points for Written Individual Explanation of model and how it compares to an actual heart. (individual grade) _____/6 points for presentation (group/individual grade) Final score _____/30 points