Curve Fitting
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Topics
- Polynomials
- Error Analysis
- Data
Description
Drag data points and their error bars and watch the best-fit polynomial curve update instantly. You choose the type of fit: linear, quadratic, or cubic. 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.
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
Standards Alignment
Common Core - Math
Teacher Tips
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Overview of sim controls, model simplifications, and insights into student thinking ( PDF ). |
Teacher-Submitted Activities
| Curve Fitting: How well does the curve describe the data? (Inquiry Based) |
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Trish Loeblein, Mike Dubson | UG-Intro HS |
Lab | Mathematics Chemistry Physics |
| Concept questions for Physics using PhET (Inquiry Based) |
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Trish Loeblein | UG-Intro HS |
MC | Physics |
| Algebra-based Physics Semester one lessons, clicker questions, and schedule in pdf (Inquiry Based) |
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Trish Loeblein | UG-Intro HS |
Demo HW Lab |
Physics |
| Alignment of PhET sims with NGSS |
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Trish Loeblein updated by Diana López | HS MS |
Other | Biology Earth Science Chemistry Physics |
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| Capacitor and Dielectric 2 | Bassam Rashed | UG-Adv HS Other UG-Intro |
HW Demo Lab Remote Guided |
Physics | ||
| ¿Qué tan bien la curva describe los datos? |
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Loeblein y Dubson (traducción Diana López) | HS UG-Intro |
Remote Guided HW |
Physics Mathematics |
| SECUNDARIA: Alineación PhET con programas de la SEP México (2011 y 2017) |
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Diana López | HS MS |
Other | Physics Biology Chemistry Mathematics |
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| PREPARATORIA: Alineación de PhET con programas de la DGB México (2017) |
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Diana López | HS UG-Intro |
Other | Physics Chemistry Mathematics |
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| PRIMARIA: Alineación con programas de la SEP México (2011 y 2017) |
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Diana López | K-5 MS |
HW Lab Demo Discuss Guided |
Astronomy Physics Mathematics Chemistry |
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| Estadística | Andrés Gualberto Palomo Cuevas | HS | Remote HW |
Mathematics |
Browse legacy activities.
HTML5 sims can run on iPads and Chromebooks, as well as PC, Mac, and Linux systems.
iPad:
iOS 12+ Safari
iPad compatible sims
Android:
Not officially supported. If you are using the HTML5 sims on Android, we recommend using the latest version of Google Chrome.
Chromebook:
Latest version of Google Chrome
The HTML5 and Flash PhET sims are supported on all Chromebooks.
Chromebook compatible sims
Windows Systems:
Microsoft Edge, latest version of Firefox, latest version of Google Chrome.
Macintosh Systems:
macOS 10.13+, Safari 13+, latest version of Chrome.
Linux Systems:
Not officially supported. Please contact phethelp@colorado.edu with troubleshooting issues.
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