Principal Sponsors
Makes grants to address the most serious social and environmental problems facing society, where risk capital, responsibly invested, may make a difference over time.
National Science Foundation
An independent federal agency created by Congress in 1950 to promote the progress of science.
King Saud University seeks to become a leader in educational and technological innovation, scientific discovery and creativity through fostering an atmosphere of intellectual inspiration and partnership for the prosperity of society.
The O'Donnell Foundation is devoted to building model programs to enhance the quality of education.
Curve Fitting
With your mouse, drag data points and their error bars, and watch the best-fit polynomial curve update instantly. You choose the type of fit: linear, quadratic, cubic, or quartic. The reduced chi-square statistic shows you when the fit is good. Or you can try to find the best fit by manually adjusting fit parameters.
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Teaching Resources
Main Topics
- Polynomials
- Error Analysis
Sample Learning Goals
- Explain how the range and uncertainty and number of data points affect correlation coefficient and chi squared
- Describe how correlation coefficient and chi squared can be used to indicate how well a curve describes the data relationship
- Apply understanding of Curve Fitting to designing experiments
Tips for Teachers
The teacher's guide (pdf) contains tips created by the PhET team.
Teaching Ideas
| Title | Authors | Level | Type | Updated |
|---|---|---|---|---|
Curve Fitting: How well does the curve describe the data? (Inquiry Based)
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Trish Loeblein, Mike Dubson | HS UG-Intro |
Lab | 7/7/13 |
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Algebra-based Physics Semester one lessons, clicker questions, and schedule in pdf (Inquiry Based)
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Trish Loeblein | HS UG-Intro |
CQs HW Demo Lab |
7/20/13 |
| Moteur en PhET | Bernard Lacour | Other | Lab | 7/5/13 |
| Alternetif akımın bileşenleri ve değerleri | İbrahim Abadanoğlu | HS UG-Intro MS |
Lab Demo |
4/14/13 |
| Line of best fit activity | Dave Dalton | HS | HW Lab |
10/30/10 |
| 커브 핏팅 SIM 사용 설명서 | Wha Kuk Lee | UG-Adv UG-Intro HS |
Demo HW Lab |
5/21/13 |
You can submit your own ideas and activities.
Translated Versions:
Software Requirements
| Windows | Macintosh | Linux |
|---|---|---|
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Microsoft Windows
XP/Vista/7 Macromedia Flash 9 or later |
OS 10.5 or later
Macromedia Flash 9 or later |
Macromedia Flash 9 or later |
Credits
| Design Team | Third-party Libraries | Thanks To |
|---|---|---|
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