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Wade Ellis, Jr. Bowen Kerins William Bauldry Robert Lopez
Teaching and Learning Mathematics in a CAS Enriched Environment: College Algebra to Real Analysis Wade Ellis, Jr. Bowen Kerins William Bauldry Robert Lopez
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Presenters Wade Ellis, Jr. Bowen Kerins William Bauldry Robert Lopez
Mathematics Instructor, West Valley College Bowen Kerins Research Associate, Center for Mathematics Education of the Educational Development Center William Bauldry Professor, Appalachian State University Robert Lopez Emeritus Professor, Rose-Hulman Institute of Technology
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Outline Introduction Secondary School Mathematics Elementary Calculus
Vector Calculus, Differential Equations, and Linear Algebra Real Analysis
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Introduction Computer Algebra Systems
1958 LISP (John McCarthy of MIT) 1980s and early 1990s Personal computers muMath, Derive, Maple, Mathematica Labs and projects in courses Late 1990s Handheld devices AP Calculus allows CAS Current situation in the classroom
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Bowen Kerins Secondary School
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Calculus Polynomial zeros The definition of differentiation
The Riemann definition of the definite integral Symbolic anti-differentiation Partial fraction decomposition The importance of numerical computation in real world situations
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solve(x^4-2x^3-3x^2-5=0,x) Derive
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solve(x^4-2x^3-3x^2-5=0,x) Derive
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Definition of the Derivative
TI-Nspire
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Using the Definition of the Derivative
TI-Nspire
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Symbolic Anti-Differentiation
Derive
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Step-by-Step
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Riemann Definition of the Definite Integral
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Numerical Definite Integrals
Derive
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Importance of Numerical Approaches
Symbolic approaches often fail Using the definition of the definite integral provides a simple way to approximate definite integrals when symbolic methods fail This idea carries over into differential equations
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Robert Lopez Vector Calculus, Differential Equations, Linear Algebra
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Bill Bauldry Real Analysis
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Questions and Comments
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