Colorado Classical Mechanics/Math Methods Instrument (CCMI)

Developed by Rachel Pepper, Steven Pollock, Danny Caballero, and Leanne Doughty

Purpose
To assess skills such as visualizing a problem, correctly applying problem-solving methods, connecting math to physics, and describing limiting behavior in first semester Classical Mechanics courses.
Format Pre/post, Short answer
Duration Pre: 20 min; Post: 50 min
Focus Mechanics Content knowledge (ordinary differential equations, Taylor series, potential energy, simple harmonic motion, Newton's laws)
Level Upper-level, Intermediate
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Sample question from the CCMI:

CCMI Implementation and Troubleshooting Guide

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M. Caballero and S. Pollock, Assessing Student Learning in Middle-Division Classical Mechanics/Math Methods, presented at the Physics Education Research Conference 2013, Portland, OR, 2013.
External Resources

The Colorado Science Education Initiative has developed a wide range of curricular materials for teaching sophmore-level Classical Mechanics/Math Methods, of which the CCMI is only one. Please visit the website (http://www.colorado.edu/sei/departments/physics_2210.htm) for other materials such as group activities, clicker questions, and homework.

RESEARCH VALIDATION
Silver Validation
This is the second highest level of research validation, corresponding to at least 5 of the validation categories below.

Research Validation Summary

Based on Research Into:

  • Student thinking

Studied Using:

  • Student interviews
  • Expert review
  • Appropriate statistical analysis

Research Conducted:

  • At multiple institutions
  • By multiple research groups
  • Peer-reviewed publication

The open-ended questions on the CCMI were developed based on a set of learning goals produced by faculty. The initial set of learning goals were revised based on course materials, and reviewed by faculty again. Questions were written covering each goal, with some questions coming from clicker questions used in class, and all based on observed student difficulties with relevant material. Many faculty reviewed the CCMI questions and student responses, and the questions were further revised. Fourteen students participated in think-aloud interviews while solving CCMI questions, and the questions were again revised. Average course exam scores were found to be strongly correlated with CCMI scores. Appropriate statistical analyses of item-item correlation and internal consistency were conducted, and reasonable values found. The CCMI has been given to over 150 students and results published in two peer-reviewed publications.

References

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Typical Results

Typical results on the CCMI from (Caballero and Pollock, 2014)


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The latest version of the CCMI, released in 2013, is version 3.