student-performed demonstrations: laboratory component for non- science majors - january term...
TRANSCRIPT
![Page 1: Student-Performed Demonstrations: Laboratory Component for Non- Science Majors - January Term Charles Ophardt, Eugene Losey Elmhurst College, IL 60126](https://reader035.vdocuments.net/reader035/viewer/2022062515/56649c735503460f9492545f/html5/thumbnails/1.jpg)
Student-Performed Demonstrations: Laboratory Component for Non-Science
Majors - January TermCharles Ophardt, Eugene Losey
Elmhurst College, IL 60126email: [email protected]
http://www.elmhurst.edu/~chm/demos/BCCE.html
![Page 2: Student-Performed Demonstrations: Laboratory Component for Non- Science Majors - January Term Charles Ophardt, Eugene Losey Elmhurst College, IL 60126](https://reader035.vdocuments.net/reader035/viewer/2022062515/56649c735503460f9492545f/html5/thumbnails/2.jpg)
Overview
• College students:
• Prepare demonstrations
• Prepare and Present Demonstration Shows to elementary students
![Page 3: Student-Performed Demonstrations: Laboratory Component for Non- Science Majors - January Term Charles Ophardt, Eugene Losey Elmhurst College, IL 60126](https://reader035.vdocuments.net/reader035/viewer/2022062515/56649c735503460f9492545f/html5/thumbnails/3.jpg)
Goals
• Provide college students opportunities:
• Learn science concepts and principles• Non-traditional and innovative • Creative and stimulating • Hands-on• Provide elementary students with motivational
opportunities to learn science
![Page 4: Student-Performed Demonstrations: Laboratory Component for Non- Science Majors - January Term Charles Ophardt, Eugene Losey Elmhurst College, IL 60126](https://reader035.vdocuments.net/reader035/viewer/2022062515/56649c735503460f9492545f/html5/thumbnails/4.jpg)
Goals
• Provide elementary students with motivational opportunities to learn science
![Page 5: Student-Performed Demonstrations: Laboratory Component for Non- Science Majors - January Term Charles Ophardt, Eugene Losey Elmhurst College, IL 60126](https://reader035.vdocuments.net/reader035/viewer/2022062515/56649c735503460f9492545f/html5/thumbnails/5.jpg)
Objectives
• College students should be able to:
• Explain science principles• Develop science process techniques in
developing demos• Practice communication skills• Gain insights in teaching science at
elementary level
![Page 6: Student-Performed Demonstrations: Laboratory Component for Non- Science Majors - January Term Charles Ophardt, Eugene Losey Elmhurst College, IL 60126](https://reader035.vdocuments.net/reader035/viewer/2022062515/56649c735503460f9492545f/html5/thumbnails/6.jpg)
Courses
• Audience:
• Non-science majors
• Mostly pre-elementary education majors
![Page 7: Student-Performed Demonstrations: Laboratory Component for Non- Science Majors - January Term Charles Ophardt, Eugene Losey Elmhurst College, IL 60126](https://reader035.vdocuments.net/reader035/viewer/2022062515/56649c735503460f9492545f/html5/thumbnails/7.jpg)
CHM 290 - Science Demonstrations
• January Term - one month
• No General Education credit
• Initial six hours lecture on principles
• Prepare and test demonstrations
• Receive one-on-one individual help on explanations
![Page 8: Student-Performed Demonstrations: Laboratory Component for Non- Science Majors - January Term Charles Ophardt, Eugene Losey Elmhurst College, IL 60126](https://reader035.vdocuments.net/reader035/viewer/2022062515/56649c735503460f9492545f/html5/thumbnails/8.jpg)
Lab FormatDemonstration Selection
• Books of compilations from previous classes• Published books and journal articles• Developing Elmhurst College web site
http://www.elmhurst.edu/~chm/demos• Outside Internet sites• Organize into groups of 5-7 students• Ensure cross section of demo selections• Avoid duplication• Select from among six favorites
![Page 9: Student-Performed Demonstrations: Laboratory Component for Non- Science Majors - January Term Charles Ophardt, Eugene Losey Elmhurst College, IL 60126](https://reader035.vdocuments.net/reader035/viewer/2022062515/56649c735503460f9492545f/html5/thumbnails/9.jpg)
Types of Demonstrations
• Six Favorite Demos• Performed in every show• Hydrogen Balloon• Liquid Nitrogen• Polyurethane Foam• Nylon Rope• Solid Water• Elephant Toothpaste
![Page 10: Student-Performed Demonstrations: Laboratory Component for Non- Science Majors - January Term Charles Ophardt, Eugene Losey Elmhurst College, IL 60126](https://reader035.vdocuments.net/reader035/viewer/2022062515/56649c735503460f9492545f/html5/thumbnails/10.jpg)
Hydrogen Balloon
![Page 11: Student-Performed Demonstrations: Laboratory Component for Non- Science Majors - January Term Charles Ophardt, Eugene Losey Elmhurst College, IL 60126](https://reader035.vdocuments.net/reader035/viewer/2022062515/56649c735503460f9492545f/html5/thumbnails/11.jpg)
Polyurethane Foam
![Page 12: Student-Performed Demonstrations: Laboratory Component for Non- Science Majors - January Term Charles Ophardt, Eugene Losey Elmhurst College, IL 60126](https://reader035.vdocuments.net/reader035/viewer/2022062515/56649c735503460f9492545f/html5/thumbnails/12.jpg)
Nylon Rope
![Page 13: Student-Performed Demonstrations: Laboratory Component for Non- Science Majors - January Term Charles Ophardt, Eugene Losey Elmhurst College, IL 60126](https://reader035.vdocuments.net/reader035/viewer/2022062515/56649c735503460f9492545f/html5/thumbnails/13.jpg)
Liquid Nitrogen
![Page 14: Student-Performed Demonstrations: Laboratory Component for Non- Science Majors - January Term Charles Ophardt, Eugene Losey Elmhurst College, IL 60126](https://reader035.vdocuments.net/reader035/viewer/2022062515/56649c735503460f9492545f/html5/thumbnails/14.jpg)
Solid Water
![Page 15: Student-Performed Demonstrations: Laboratory Component for Non- Science Majors - January Term Charles Ophardt, Eugene Losey Elmhurst College, IL 60126](https://reader035.vdocuments.net/reader035/viewer/2022062515/56649c735503460f9492545f/html5/thumbnails/15.jpg)
Elephant Toothpaste
![Page 16: Student-Performed Demonstrations: Laboratory Component for Non- Science Majors - January Term Charles Ophardt, Eugene Losey Elmhurst College, IL 60126](https://reader035.vdocuments.net/reader035/viewer/2022062515/56649c735503460f9492545f/html5/thumbnails/16.jpg)
Categories of Demonstrations• Demos that use household vs. “lab” chemicals• Density• Gases and pressure• Twenty different uses of baking soda and
vinegar• Solubility and Polarity• Simple reactions of elements• Acid-Base• Oxidation-Reduction• Double Replacement/Precipitation Reactions• Polymer reactions
![Page 17: Student-Performed Demonstrations: Laboratory Component for Non- Science Majors - January Term Charles Ophardt, Eugene Losey Elmhurst College, IL 60126](https://reader035.vdocuments.net/reader035/viewer/2022062515/56649c735503460f9492545f/html5/thumbnails/17.jpg)
Lab FormatDemo Preparation Cycle
• CHM 290 J-Term
• Two 3 hour days - prepare and test 4 demos
• First day - mainly preparation and testing
• Second day - receive help on explanations
• Prepare chemicals/glassware for shows• Store and transport chemicals in a plastic bin
![Page 18: Student-Performed Demonstrations: Laboratory Component for Non- Science Majors - January Term Charles Ophardt, Eugene Losey Elmhurst College, IL 60126](https://reader035.vdocuments.net/reader035/viewer/2022062515/56649c735503460f9492545f/html5/thumbnails/18.jpg)
Demonstration Write-UpFormat
• Title• Science Concepts• Materials and Pre-preparations• Directions to carry out demo• Introduction and Commentary• Explanation - college level• Appropriate grade level explanation• Safety• Waste Disposal• Reference
![Page 19: Student-Performed Demonstrations: Laboratory Component for Non- Science Majors - January Term Charles Ophardt, Eugene Losey Elmhurst College, IL 60126](https://reader035.vdocuments.net/reader035/viewer/2022062515/56649c735503460f9492545f/html5/thumbnails/19.jpg)
Preparation of a Poster
• Drawings of Equipment and Observations
• Simple concept
• Names / Formulas / Equation
![Page 20: Student-Performed Demonstrations: Laboratory Component for Non- Science Majors - January Term Charles Ophardt, Eugene Losey Elmhurst College, IL 60126](https://reader035.vdocuments.net/reader035/viewer/2022062515/56649c735503460f9492545f/html5/thumbnails/20.jpg)
Practice Show
• Organized in a demonstration order
• Present practice show
• Oral Presentation Rubric used for grading
• Instructor and peers provide suggestions
![Page 21: Student-Performed Demonstrations: Laboratory Component for Non- Science Majors - January Term Charles Ophardt, Eugene Losey Elmhurst College, IL 60126](https://reader035.vdocuments.net/reader035/viewer/2022062515/56649c735503460f9492545f/html5/thumbnails/21.jpg)
Future Direction
• Continue work with demo write-ups online with pictures
• Cross reference demos to “vchembook”• Continue work on web site with concepts and
explanations - “vchembook”• http://www.elmhurst.edu/~chm/vchembook
• Contains core concepts with pictures and diagrams
• Cross referenced to the demos