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Chris Harrow  
Blog by a math teacher at a prep school in Ohio. Posts, which date back to March, 2011 and emphasize science, technology, engineering, and mathematics (STEM) and computer algebra systems (CAS), have included "Transforming inverse trig graphs"; "Birthday Problem redux"; "Area 10 Squares"; "Creative Subtraction for the Very Young"; "Polar Graphing Surprise"; "Odyssey Robotics"; "Trig Identities with a Purpose"; "Mobius Strip for Chanukah"; "Polar Derivatives on TINspire CAS"; "Algebra Explorations Before Algebra"; "Finding area"; "Number Bases and Polynomials"; "Basex Numbers and Infinite Series"; "Traveling Dots, Parabolas, and Elegant Math"; "Birthdays, CAS, Probability, and Student Creativity"; "Next Steps from a Triangle"; "Recentering Normal Curves, revisited"; "How One Data Point Destroyed a Study"; "Value Process over Answers"; "Many Roads Give Same Derivative"; "Envelope Curves"; "Exponentials Don't Stretch"; and "Midpoints, midpoints, everywhere!" The coauthor of a precalculus textbook, Harrow serves the Hawken School as its Mathematics Chair.  


Levels:  Middle School (68), High School (912) 
Languages:  English 
Resource Types:  Video, Calculators, Problems/Puzzles, WebBased Discussions, Humor, Topic Tools Miscellaneous 
Math Topics:  Basic Algebra, Linear Algebra, Exponents/Roots, Logarithms, Patterns/Relationships, ProblemSolving, Calculus (Single Variable), Euclidean Plane Geometry, Number Theory, PreCalculus, Probability, Statistics, Engineering, Computer Algebra 
Math Ed Topics:  ProblemSolving, MaterialsReviews/Recommendations, Activities, Technology in Math Ed, Staff/Prof Development 
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