Preface; The Method of Characteristics for the Numerical Solution of Hyperbolic Differential Equations; Higher Education: Federal Science, Technology, Engineering, and Mathematics Programs and Related Trends; Negotiating Mathematics and Science School Subject Boundaries: The Role of Aesthetic Understanding; The Mathematical Basis of Periodicity in Atomic and Molecular Spectroscopy; Mathematical Modelling of Thermomechanical Destruction of Polypropylene; A Design-Based Study of Cognitive Tool for Teaching and Learning the Perimeter of Closed Shapes; Modelling Asymmetric Consumer Behaviour and Demand Equations for Bridging Gaps in Retailing; Science, Technology, Engineering, and Mathematics (STEM) Education Issues and Legislative Options; Index.