Abstract
The physics inventory of quantitative literacy is a 20-item instrument to assess quantitative reasoning in introductory physics contexts.
Highlights
Introductory physics uses familiar mathematics in distinct ways to describe the world and make meaning
We have developed the Physics Inventory of Quantitative Literacy, an instrument to assess quantitative reasoning in introductory physics contexts
We have presented expert interview data confirming that the promotion of such reasoning is an important goal of introductory physics courses, which are required for most STEM majors
Summary
Introductory physics uses familiar mathematics in distinct ways to describe the world and make meaning. When reading the equation þ10 N 1⁄4 −ð20 N=mÞx; an expert, noting the units and the signs, may consider it to be an example of Hooke’s law They may construct a mental story about the force exerted by a spring on a hand as the spring is stretched. We provide evidence of the PIQL’s validity as a measure of development of PQL in this population of students [9] We recognize that this evidence is not representative of all introductory physics students and does not apply to the validity of the PIQL with all other populations. We conclude with a discussion of plans to investigate the validity of the PIQL for use in all introductory physics courses and across multiple instructional settings
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