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Preface Author biography Part I Conservation laws 1 Motivation 2 Getting ready 2.1 Anticipatory set 2.2 Objective 2.3 Purpose 3 Giving information 3.1 Instructional input 3.1.1 Multiplying vectors by scalars 3.1.2 Multiplying vectors by vectors: the vector 'dot'-product 3.2 Modeling 3.3 Instructional input 3.3.1 Work or energy 3.4 Modeling 3.5 Instructional input 3.5.1 Work done by a non-constant force 3.5.2 The 'work-energy theorem' or the 'law of conservation of energy' 3.6 Modeling 3.7 Checking for understanding 3.8 Instructional input 3.8.1 Linear momentum 3.8.2 The 'law of conservation of momentum\