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Force concept inventory
Every student begins physics with a well-established system of commonsense beliefs about how the physical world works derived from years of personal experience. Over the last decade, physicsExpand
Toward a modeling theory of physics instruction
An analysis of the conceptual structure of physics identifies essential factual and procedural knowledge which is not explicitly formulated and taught in physics courses. It leads to the conclusionExpand
Common sense concepts about motion
Common sense beliefs of college students about motion and its causes are surveyed and analyzed. A taxonomy of common sense concepts which conflict with Newtonian theory is developed as a guide toExpand
The initial knowledge state of college physics students
An instrument to assess the basic knowledge state of students taking a first course in physics has been designed and validated. Measurements with the instrument show that the student’s initialExpand
New Foundations for Classical Mechanics
1: Origins of Geometric Algebra.- 1-1. Geometry as Physics.- 1-2. Number and Magnitude.- 1-3. Directed Numbers.- 1-4. The Inner Product.- 1-5. The Outer Product.- 1-6. Synthesis and Simplification.-Expand
Space-time algebra
Preface to the Second Edition.- Introduction.- Part I:Geometric Algebra.- 1.Intrepretation of Clifford Algebra.- 2.Definition of Clifford Algebra.- 3.Inner and Outer Products.- 4.Structure ofExpand
Modeling games in the Newtonian World
The basic principles of Newtonian mechanics can be interpreted as a system of rules defining a medley of modeling games. The common objective of these games is to develop validated models of physicalExpand
A mechanics baseline test
We have designed a test to assess student understanding of the most basic concepts in mechanics. The test is universal in the sense that it is limited to concepts that should be addressed inExpand
A modeling method for high school physics instruction
The design and development of a new method for high school physics instruction is described. Students are actively engaged in understanding the physical world by constructing and using scientificExpand