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Susan Addington
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Susan Addington
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I'm a professor of mathematics at California State University, San Bernardino.
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Animated Logo for quadrivium.info
Susan Addington
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Multiplying fractions--the area model
Susan Addington
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The area under the cycloid
Susan Addington
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The area of a triangle
Susan Addington
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Dissecting a Trapezoid to a Rectangle
Susan Addington
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Dissecting a parallelogram to a recta…
Susan Addington
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The focus-directrix construction of a…
Susan Addington
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Coordinate system for a parabola (Apo…
Susan Addington
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The focus-directrix construction of a…
Susan Addington
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Creating a pattern with rotational sy…
Susan Addington
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An Indian Square Root Algorithm
Susan Addington
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Similarity: Dilations and Cones
Susan Addington
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Equivalent Ratios
Duane Habecker
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Poorly Drawn Quadrilaterals
Steve Phelps
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Gauss-Jordan 2x2 Elimination
Auston B Cron
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Angle Estimation Warmup
Andrew Knauft
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Number Pyramids
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Graph the Line
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Flip Flop
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GeoGebra Pentominoes
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right triangle paradox
sonom
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SSA triangle: The Ambiguous Case
talljerome
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Least Squares
timteachesmath
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AQR Section 17: Where's the Mean?
Steve Phelps
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Secant Slope Calculator
Jake Binnema
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Exponential or Logistic Function that…
talljerome
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Growth of Facebook.com
Roy Wright
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Lower and Upper Sum of a Function
GeoGebra Materials Team
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One-Son Policy Simulation
Steve Phelps
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Analog Clock
Duane Habecker
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Pendulum Wave Machine (Simulation)
Michael Borcherds
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05.1 Measures of Central Tendency
sonom
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Hilbert curve
Thijs
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'Tangram' Puzzle 'Cat'
GeoGebra Translation Team German
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Moss Egg by Robert Dixon
Bill Lombard
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Spirograph-Epitrochoid Earth and Moon
Bill Lombard
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Inclined Plane with Two Masses and a …
Tom Walsh
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The Relationship Between Human Height…
Roy Wright
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Factorization - Visual illustration o…
Ethan Hall
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Rotating a Triangle Around a Coordina…
Steve Phelps
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Area of a Circle - Wedge/Sector Demon…
Linda Fahlberg-Stojanovska
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Triangle Paradox (Missing square puzzle)
Michael Borcherds
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