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Irina Kimyagarov
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Area of a triangle using trigonometry
Irina Kimyagarov
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Exploring Reflections
Irina Kimyagarov
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Point Reflection through the Origin
Irina Kimyagarov
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Reflecting over the line y=-x
Irina Kimyagarov
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Reflecting over the line y=x
Irina Kimyagarov
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Reflecting over the x-axis
Irina Kimyagarov
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Reflecting over the y-axis
Irina Kimyagarov
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Applying the Points of Concurrency
evazus
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48
Quadrilaterals
Tim Brzezinski
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Transversal Intersects Parallel Lines
Tim Brzezinski
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Determining Properties of a Trapezoid
Irina Kimyagarov
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Exploring Triangle Centers in Depth
geodynamical
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Equivalent Ratios
Duane Habecker
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Poorly Drawn Quadrilaterals
Steve Phelps
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Convex quadrilaterals
Paulo Correia
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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
Jennifer Silverman
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Graph the Line
Steve Phelps
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Flip Flop
John Golden
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Guess My Rule (2013)
John Golden
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5-Piece Puzzle
Duane Habecker
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GeoGebra Pentominoes
Duane Habecker
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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: Mean but Sensitive
Steve Phelps
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AQR Section 17: Where's the Mean?
Steve Phelps
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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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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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Moss Egg by Robert Dixon
Bill Lombard
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Spirograph-Epitrochoid Earth and Moon
Bill Lombard
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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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Kaleidoscope
Michael Borcherds
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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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