swingHypDown
Swing Hyp Down 2024 mod 5s
A GeoGebra animation exploring swing hyp down 2024 mod 5s.
GeometryMotionAnimation
- Audience
- High school, General
- Interaction
- Animation
- Credit
- Scott Farrar
Math applets
A working collection of interactive mathematics.
GeoGebra constructions from 2013-2024, organized by mathematical idea, audience, and the kind of interaction they invite.
I'm working to properly credit files that came from other GeoGebra authors. If you see one inaccurately credited, please let me know.
I'm also working to update the functionality of this archive. Some files may not embed properly at the moment.
111published applets
8mathematical domains
15connected to talks
Catalog
Find an applet
111 matching applets
two coins rotate
Two coins rotate
A GeoGebra animation exploring two coins rotate.
Probability and statisticsProbabilityMotionAnimation
- Audience
- High school, General
- Interaction
- Animation
- Credit
- Scott Farrar
GeoGebra Doodads
Aperiodic Monotile
Explore the geometry of the 2023 hat monotile, a single shape that tiles the plane only aperiodically.
GeometryTilingConstruction
- Audience
- High school, General
- Interaction
- Construction, Generative art, Visualization
- Credit
- Scott Farrar
GeoGebra Doodads
Bhaskara 2023
A GeoGebra drag and notice exploring bhaskara 2023.
GeometryPythagorean theoremDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Scott Farrar
Riddler on the Proof
Mobius strip distance
A GeoGebra proof exploring mobius strip distance.
GeometryProof
- Audience
- High school, General
- Interaction
- Proof, Visualization
- Credit
- Scott Farrar
GeoGebra Doodads
Pattern block areas
A GeoGebra drag and notice exploring pattern block areas.
GeometryTilingDrag and notice
- Audience
- Middle school, High school
- Interaction
- Drag and notice
- Credit
- Scott Farrar
GeoGebra Doodads
Teardrop reconstruction
A GeoGebra construction exploring teardrop reconstruction.
GeometryConstruction
- Audience
- High school, General
- Interaction
- Construction, Visualization
- Credit
- Scott Farrar
GeoGebra Doodads
Variance kareem carr doodling
A GeoGebra drag and notice exploring variance kareem carr doodling.
Probability and statisticsData and variationDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Inspired by Kareem Carr
GeoGebra Doodads
16 point trig
A GeoGebra drag and notice exploring 16 point trig.
TrigonometryDrag and notice
- Audience
- High school, Precalculus
- Interaction
- Drag and notice
- Credit
- Scott Farrar
GeoGebra Doodads
California solar system scale model
A GeoGebra modeling exploring california solar system scale model.
ModelingModeling
- Audience
- High school, General
- Interaction
- Modeling, Visualization
- Credit
- Scott Farrar
GeoGebra Doodads
Factor all the quads segments
A GeoGebra drag and notice exploring factor all the quads segments.
Algebra and functionsFactoringDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Scott Farrar
GeoGebra Doodads
Sixes Up simulation
A GeoGebra simulation exploring sixes up simulation.
Probability and statisticsProbabilitySimulation
- Audience
- High school, General
- Interaction
- Simulation, Visualization
- Credit
- Scott Farrar
GeoGebra Doodads
Tiling from a cutout 20gon
A GeoGebra generative art exploring tiling from a cutout 20gon.
GeometryTilingGenerative art
- Audience
- High school, General
- Interaction
- Generative art, Visualization
- Credit
- Scott Farrar
GeoGebra Doodads
President popular vote
A GeoGebra modeling exploring president popular vote.
ModelingModeling
- Audience
- High school, General
- Interaction
- Modeling, Visualization
- Credit
- Scott Farrar
triangle inequality 2020
Triangle inequality vector addition
A GeoGebra construction exploring triangle inequality vector addition.
GeometryTriangle inequalityAnglesConstruction
- Audience
- Middle school, High school
- Interaction
- Construction, Visualization
- Credit
- Scott Farrar
beesbombscircles
Bees Bombs Circles
A GeoGebra drag and notice exploring bees bombs circles.
GeometryDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Scott Farrar adapted from https://beesandbombs.tumblr.com/
GeoGebra Doodads
Closest rational to pi and e
A GeoGebra drag and notice exploring closest rational to pi and e.
Number theoryDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Scott Farrar
Two Cones
Cones from a Circle
Cut and fold a circle into cone models and compare how radius, arc length, and height move together.
GeometryConesModelingDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice, Modeling, Visualization
- Credit
- Scott Farrar
GeoGebra Doodads
Cshearer41 hexagon problem
A GeoGebra drag and notice exploring cshearer41 hexagon problem.
GeometryDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Problem by Catriona Shearer
GeoGebra Doodads
Curvature Steering
A GeoGebra drag and notice exploring curvature steering.
CalculusMotionDrag and notice
- Audience
- Calculus
- Interaction
- Drag and notice
- Credit
- Scott Farrar
factoring cubics
Factoring cubics
A GeoGebra drag and notice exploring factoring cubics.
Algebra and functionsFactoringDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Scott Farrar
Presented in Explorable Explanations 2018
john golden's squirqle grid
Grid Variations
A GeoGebra drag and notice exploring grid variations.
GeometryDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- John Golden
intertia smooth animation
Intertia smooth animation
A GeoGebra animation exploring intertia smooth animation.
GeometryAnimation
- Audience
- High school, General
- Interaction
- Animation
- Credit
- Scott Farrar
GeoGebra Doodads
Lines through irrational root pair polynomial extrema integer coefficients
A GeoGebra drag and notice exploring lines through irrational root pair polynomial extrema integer coefficients.
Number theoryOptimizationDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Scott Farrar
GeoGebra Doodads
Lots of congruent angles
A GeoGebra proof exploring lots of congruent angles.
GeometryAnglesProof
- Audience
- Middle school, High school
- Interaction
- Proof, Visualization
- Credit
- Scott Farrar
parabolic reflector
Parabolic reflector v2
A GeoGebra drag and notice exploring parabolic reflector v2.
GeometryDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Scott Farrar
GeoGebra Doodads
Pentagon angles
A GeoGebra drag and notice exploring pentagon angles.
GeometryAnglesDrag and notice
- Audience
- Middle school, High school
- Interaction
- Drag and notice
- Credit
- Scott Farrar
pentagon cycle
Pentagon cycle
A GeoGebra drag and notice exploring pentagon cycle.
GeometryDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Scott Farrar
persistence recursion
Persistence recursion past 100 v2
A GeoGebra drag and notice exploring persistence recursion past 100 v2.
Number theoryIterationDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Scott Farrar
sine wag the dog circle
Sine Wag the Dog
A GeoGebra drag and notice exploring sine wag the dog.
TrigonometrySine and cosineDrag and notice
- Audience
- High school, Precalculus
- Interaction
- Drag and notice
- Credit
- Scott Farrar
slicing pie
Slicing Pie
A GeoGebra drag and notice exploring slicing pie.
GeometryDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Scott Farrar
spheres in a room
Spheres In ARoom
A GeoGebra drag and notice exploring spheres in aroom.
GeometryDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Scott Farrar
spinningDots
Spinning Dots3D v3 squares
A GeoGebra animation exploring spinning dots3d v3 squares.
GeometryMotionAnimation
- Audience
- High school, General
- Interaction
- Animation, Generative art
- Credit
- Scott Farrar
spinningDots
Spinning Dots3D v5 redo
A GeoGebra animation exploring spinning dots3d v5 redo.
GeometryMotionAnimation
- Audience
- High school, General
- Interaction
- Animation, Generative art
- Credit
- Scott Farrar
triangle ineq proof question
Triangle ineq proof question
A GeoGebra proof exploring triangle ineq proof question.
GeometryTriangle inequalityAnglesProof
- Audience
- Middle school, High school
- Interaction
- Proof, Construction, Visualization
- Credit
- Scott Farrar
GeoGebra Doodads
Bart station elevations
A GeoGebra modeling exploring bart station elevations.
ModelingModeling
- Audience
- High school, General
- Interaction
- Modeling, Visualization
- Credit
- Scott Farrar
visualizeComplexDoubleNumLine
Complex Double Num Line
A GeoGebra drag and notice exploring complex double num line.
Complex numbersComplex transformationsDrag and notice
- Audience
- High school, Precalculus
- Interaction
- Drag and notice
- Credit
- Scott Farrar
complexRules
Complex Squaring mesh
A GeoGebra drag and notice exploring complex squaring mesh.
Complex numbersComplex transformationsDrag and notice
- Audience
- High school, Precalculus
- Interaction
- Drag and notice
- Credit
- Scott Farrar
GeoGebra
Factorable Quadratics
Drag the coefficient point and watch how a monic quadratic's graph, factorability, and integer roots line up.
Algebra and functionsQuadraticsFactoringDrag and notice
- Audience
- High school
- Interaction
- Drag and notice, Visualization
- Credit
- Scott Farrar
Presented in Explorable Explanations 2018
GeoGebra Doodads
Function Circle1
A GeoGebra drag and notice exploring function circle1.
Algebra and functionsDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Scott Farrar
GeoGebra Doodads
Function Tube
A GeoGebra drag and notice exploring function tube.
Algebra and functionsDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Scott Farrar
GeoGebra Doodads
Heartbeats
A GeoGebra drag and notice exploring heartbeats.
Probability and statisticsDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Scott Farrar
GeoGebra Doodads
Lines in a Circle
Animate lines rotating through a circle and watch the paths and envelopes they create.
GeometryCirclesAnimation
- Audience
- High school, General
- Interaction
- Animation, Visualization
- Credit
- Scott Farrar
GeoGebra Doodads
Messy e
A GeoGebra drag and notice exploring messy e.
Number theoryDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Scott Farrar
GeoGebra Doodads
Messy e 2
A GeoGebra drag and notice exploring messy e 2.
Number theoryDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Scott Farrar
complexRules
Multiply imaginary points - powers of i power version
A GeoGebra drag and notice exploring multiply imaginary points - powers of i power version.
Complex numbersComplex transformationsDrag and notice
- Audience
- High school, Precalculus
- Interaction
- Drag and notice
- Credit
- Scott Farrar
swingHypDown
Swing Hyp Down
Use a swinging right-triangle animation to connect a changing hypotenuse with geometric motion.
GeometryRight trianglesAnimation
- Audience
- High school, General
- Interaction
- Animation, Visualization
- Credit
- Scott Farrar
swingHypDown
Swing Hyp Down all at once
A GeoGebra animation exploring swing hyp down all at once.
GeometryMotionAnimation
- Audience
- High school, General
- Interaction
- Animation
- Credit
- Scott Farrar
GeoGebra Doodads
7ths and 13ths 2017
A GeoGebra drag and notice exploring 7ths and 13ths 2017.
Number theoryDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Scott Farrar
sine bounding box
Bounding Box Sine
A GeoGebra drag and notice exploring bounding box sine.
TrigonometrySine and cosineDrag and notice
- Audience
- High school, Precalculus
- Interaction
- Drag and notice
- Credit
- Scott Farrar
sine bounding box
Bounding Box Sine
A GeoGebra drag and notice exploring bounding box sine.
TrigonometrySine and cosineDrag and notice
- Audience
- High school, Precalculus
- Interaction
- Drag and notice
- Credit
- Scott Farrar
GeoGebra Doodads
Circle Inversion
Drag points through an inversive geometry construction and see lines, circles, and distances transform.
GeometryInversionDrag and notice
- Audience
- High school, Precalculus
- Interaction
- Drag and notice, Construction, Visualization
- Credit
- Scott Farrar
cobweb chaos
Cobweb Chaos
Use a cobweb diagram to watch repeated function iteration settle, cycle, or become chaotic.
Algebra and functionsIterationDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice, Animation, Visualization
- Credit
- Scott Farrar
collatz
Collatz webbing
A GeoGebra generative art exploring collatz webbing.
Number theoryIterationGenerative art
- Audience
- High school, General
- Interaction
- Generative art, Visualization
- Credit
- Scott Farrar
octagons
Complete Graph Turning
A GeoGebra generative art exploring complete graph turning.
GeometryGenerative art
- Audience
- High school, General
- Interaction
- Generative art, Visualization
- Credit
- Original author unknown
complex sequences
Complex Sequence
Follow an iterated complex sequence as its orbit draws structure, repetition, and divergence in the plane.
Complex numbersIterationDrag and notice
- Audience
- High school, Precalculus
- Interaction
- Drag and notice, Animation, Visualization
- Credit
- Scott Farrar
Diagonals cut exterior version
Diagonals Cut - Exterior Edition
A GeoGebra drag and notice exploring diagonals cut - exterior edition.
GeometryDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Scott Farrar
Presented in South Bay 2017, Explorable Explanations 2018
graphing challenge\imperfect loops
Imperfect loops
A GeoGebra drag and notice exploring imperfect loops.
Algebra and functionsDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Scott Farrar
GeoGebra Doodads
Incenter Spirograph
Animate a triangle and trace its incenter into a family of geometric, spirograph-like curves.
GeometryTriangle centersAnimation
- Audience
- High school, General
- Interaction
- Animation, Generative art, Visualization
- Credit
- Scott Farrar
RectTriArea
L and w ratio recttriarea
A GeoGebra drag and notice exploring l and w ratio recttriarea.
GeometryArea and perimeterDrag and notice
- Audience
- Middle school, High school
- Interaction
- Drag and notice
- Credit
- Scott Farrar
GeoGebra Doodads
Machine Learning Gradient Descent
A three-dimensional sketch of an optimization path descending across a mathematical surface.
CalculusOptimizationModelingSimulation
- Audience
- Calculus
- Interaction
- Simulation, Modeling, Visualization
- Credit
- Scott Farrar
tax brackets
Married Joint
A GeoGebra modeling exploring married joint.
Algebra and functionsTax policyModeling
- Audience
- High school, General
- Interaction
- Modeling, Visualization
- Credit
- Scott Farrar
triangle centers 3blue1brown
Min distance to edges
A GeoGebra construction exploring min distance to edges.
GeometryTriangle centersAnglesConstruction
- Audience
- Middle school, High school
- Interaction
- Construction, Visualization
- Credit
- Scott Farrar, inspired by 3Blue1Brown
GeoGebra Doodads
Octagons
A GeoGebra generative art exploring octagons.
GeometryGenerative art
- Audience
- High school, General
- Interaction
- Generative art, Visualization
- Credit
- Scott Farrar
equiAreaEstimate
Rect Tri Area Color
A GeoGebra construction exploring rect tri area color.
GeometryArea and perimeterAnglesConstruction
- Audience
- Middle school, High school
- Interaction
- Construction, Visualization
- Credit
- Scott Farrar
Presented in South Bay 2017
rectangleCenterToCircleCenter
Rectangle Center To Circle Center
A GeoGebra drag and notice exploring rectangle center to circle center.
GeometryAnglesDrag and notice
- Audience
- Middle school, High school
- Interaction
- Drag and notice
- Credit
- Scott Farrar
GeoGebra Doodads
Repeated perpendiculars of right triangles
A GeoGebra construction exploring repeated perpendiculars of right triangles.
GeometryAnglesConstruction
- Audience
- Middle school, High school
- Interaction
- Construction, Visualization
- Credit
- Scott Farrar
new unit circle triangles
Similar triangles of the unit circle
A GeoGebra construction exploring similar triangles of the unit circle.
TrigonometryAnglesUnit circleConstruction
- Audience
- High school, Precalculus
- Interaction
- Construction, Visualization
- Credit
- Scott Farrar
tax brackets
Tax Brackets
See marginal tax brackets as a piecewise model rather than a single rate applied to all income.
Algebra and functionsTax policyModelingModeling
- Audience
- High school, General
- Interaction
- Modeling, Visualization
- Credit
- Scott Farrar
trapezoid areas
Trapezoid areas
A GeoGebra drag and notice exploring trapezoid areas.
GeometryDrag and notice
- Audience
- Middle school, High school
- Interaction
- Drag and notice
- Credit
- Scott Farrar
triangle centers 3blue1brown
Triangle centers
A GeoGebra construction exploring triangle centers.
GeometryTriangle centersAnglesConstruction
- Audience
- Middle school, High school
- Interaction
- Construction, Visualization
- Credit
- Scott Farrar, inspired by 3Blue1Brown
GeoGebra Doodads
Triangle ineq sfsu
A GeoGebra construction exploring triangle ineq sfsu.
GeometryTriangle inequalityAnglesConstruction
- Audience
- Middle school, High school
- Interaction
- Construction, Visualization
- Credit
- Scott Farrar
triangular coin game
Triangular coin probability
A GeoGebra simulation exploring triangular coin probability.
Probability and statisticsProbabilitySimulation
- Audience
- High school, General
- Interaction
- Simulation, Visualization
- Credit
- Scott Farrar
RectTriArea
03 Rect Overflow freeplay
A GeoGebra drag and notice exploring 03 rect overflow freeplay.
GeometryArea and perimeterDrag and notice
- Audience
- Middle school, High school
- Interaction
- Drag and notice
- Credit
- Scott Farrar
RectTriArea
Area Max 01
A GeoGebra drag and notice exploring area max 01.
GeometryArea and perimeterOptimizationDrag and notice
- Audience
- Middle school, High school
- Interaction
- Drag and notice
- Credit
- Scott Farrar
complete the square
Completing the Square
Drag through a visual model of completing the square and watch the algebraic structure take shape.
Algebra and functionsCompleting the squareDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice, Visualization
- Credit
- Scott Farrar
GeoGebra Doodads
Forks and knives
A GeoGebra drag and notice exploring forks and knives.
GeometryDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Scott Farrar
complete the square
Perfsqtrinomials
A GeoGebra drag and notice exploring perfsqtrinomials.
Algebra and functionsQuadraticsDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Scott Farrar
perpendicular x sect makers
Perpxsect
A GeoGebra construction exploring perpxsect.
GeometryConstruction
- Audience
- High school, General
- Interaction
- Construction, Visualization
- Credit
- Scott Farrar
quadratic ancestors
Quadratic ancestors
A GeoGebra drag and notice exploring quadratic ancestors.
Algebra and functionsQuadraticsDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Scott Farrar
equiAreaEstimate
Rect Tri Area Gray
A GeoGebra construction exploring rect tri area gray.
GeometryArea and perimeterAnglesConstruction
- Audience
- Middle school, High school
- Interaction
- Construction, Visualization
- Credit
- Scott Farrar
RectTriArea
Rectangle Pouring
A GeoGebra drag and notice exploring rectangle pouring.
GeometryArea and perimeterAnglesDrag and notice
- Audience
- Middle school, High school
- Interaction
- Drag and notice
- Credit
- Scott Farrar
GeoGebra Doodads
Simpsons diversity
A GeoGebra drag and notice exploring simpsons diversity.
Probability and statisticsData and variationDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Scott Farrar
Econ Taxes
Taxes on Consumers
A GeoGebra modeling exploring taxes on consumers.
Algebra and functionsTax policyModeling
- Audience
- High school, General
- Interaction
- Modeling, Visualization
- Credit
- Scott Farrar
GeoGebra Doodads
Various forecasts
A GeoGebra simulation exploring various forecasts.
Probability and statisticsData and variationSimulation
- Audience
- High school, General
- Interaction
- Simulation, Visualization
- Credit
- Scott Farrar
GeoGebra Doodads
Walking Machine
A GeoGebra animation exploring walking machine.
GeometryMotionAnimation
- Audience
- High school, General
- Interaction
- Animation
- Credit
- Scott Farrar
trig unit circle
Why the Unit Circle?
A GeoGebra drag and notice exploring why the unit circle?.
TrigonometryUnit circleDrag and notice
- Audience
- High school, Precalculus
- Interaction
- Drag and notice
- Credit
- Scott Farrar
Presented in South Bay 2017
GeoGebra Doodads
Haga's Theorem
A GeoGebra proof exploring haga's theorem.
GeometryProof
- Audience
- High school, General
- Interaction
- Proof, Visualization
- Credit
- Scott Farrar
alternate interior when congruent
Alternate Interior Angles -- When are they congruent?
A GeoGebra proof exploring alternate interior angles -- when are they congruent?.
GeometryAnglesProof
- Audience
- Middle school, High school
- Interaction
- Proof, Visualization
- Credit
- Scott Farrar
kate nowak paper folding
Kate nowak paper folding
A GeoGebra drag and notice exploring kate nowak paper folding.
GeometryDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Inspired by Kate Nowak
primative pythag closed under multiply
Primative pythag
A GeoGebra proof exploring primative pythag.
Number theoryPythagorean theoremProof
- Audience
- High school, General
- Interaction
- Proof, Visualization
- Credit
- Scott Farrar
angle side side
When does Angle Side Side work?
A GeoGebra drag and notice exploring when does angle side side work?.
GeometryAnglesDrag and notice
- Audience
- Middle school, High school
- Interaction
- Drag and notice
- Credit
- Scott Farrar
Presented in Explorable Explanations 2018
angle bisect a trapezoid
Angle bisect a trapezoid
A GeoGebra construction exploring angle bisect a trapezoid.
GeometryAnglesConstruction
- Audience
- Middle school, High school
- Interaction
- Construction, Visualization
- Credit
- Scott Farrar
Asilomar 2013
Distances to Vertices
Explore how distances from a movable point to triangle vertices change and what patterns emerge.
GeometryTriangle centersDrag and notice
- Audience
- High school
- Interaction
- Drag and notice, Visualization
- Credit
- Scott Farrar
Presented in Asilomar 2013
Asilomar 2013
Epsilon and Delta Limits
Manipulate epsilon and delta intervals so the formal limit definition has a dynamic picture.
CalculusLimitsDrag and notice
- Audience
- Calculus
- Interaction
- Drag and notice, Visualization
- Credit
- Scott Farrar
Presented in Asilomar 2013
epsilon delta
Epsilon delta
A GeoGebra drag and notice exploring epsilon delta.
CalculusLimitsDrag and notice
- Audience
- Calculus
- Interaction
- Drag and notice
- Credit
- Scott Farrar
Asilomar 2013
Euclid's Pythagorean Proof
Step through a visual proof of the Pythagorean theorem and the geometric moves behind the result.
GeometryPythagorean theoremProof
- Audience
- High school
- Interaction
- Proof, Visualization
- Credit
- Scott Farrar
Presented in Asilomar 2013
Asilomar 2013
Painting with Linear Factors
Use factors as visible controls for shaping a graph, adapted from Riley Lark's activity idea.
Algebra and functionsFactoringDrag and notice
- Audience
- High school
- Interaction
- Drag and notice, Visualization
- Credit
- Adapted from Riley Lark
Presented in Asilomar 2013
Sine unit circle
Scaled sine
A GeoGebra drag and notice exploring scaled sine.
TrigonometryUnit circleSine and cosineDrag and notice
- Audience
- High school, Precalculus
- Interaction
- Drag and notice
- Credit
- Scott Farrar
Sine unit circle
Sine unit circle oct2013
A GeoGebra drag and notice exploring sine unit circle oct2013.
TrigonometryUnit circleSine and cosineDrag and notice
- Audience
- High school, Precalculus
- Interaction
- Drag and notice
- Credit
- Scott Farrar
Asilomar 2013 companion file
Square Not Square
Compare what stays square, what only looks square, and what changes under dragging.
GeometryQuadrilateralsDrag and notice
- Audience
- Middle school, High school
- Interaction
- Drag and notice, Construction
- Credit
- John Golden
Presented in Asilomar 2013
Asilomar 2013
Triangle Inequality Drag
Drag segment lengths and watch possible triangles appear, disappear, or collapse at the boundary.
GeometryTriangle inequalityDrag and notice
- Audience
- Middle school, High school
- Interaction
- Drag and notice, Construction
- Credit
- Scott Farrar
Presented in Asilomar 2013
Sine unit circle
Unscaled sine
A GeoGebra drag and notice exploring unscaled sine.
TrigonometryUnit circleSine and cosineDrag and notice
- Audience
- High school, Precalculus
- Interaction
- Drag and notice
- Credit
- Scott Farrar
Color continuum Triangle Centers
Distances to Vertices
Move a point around a triangle and study how its distances to the vertices change together.
GeometryTriangle centersDrag and notice
- Audience
- Middle school, High school
- Interaction
- Drag and notice, Visualization
- Credit
- Scott Farrar
Color continuum Triangle Centers
Distances to Vertices
A GeoGebra construction exploring distances to vertices.
GeometryTriangle centersAnglesConstruction
- Audience
- Middle school, High school
- Interaction
- Construction, Visualization
- Credit
- Scott Farrar
trig unit circle
Unit Circle Trig Segments Reference
A GeoGebra drag and notice exploring unit circle trig segments reference.
TrigonometryUnit circleDrag and notice
- Audience
- High school, Precalculus
- Interaction
- Drag and notice
- Credit
- Scott Farrar
Asilomar 2013
Generating Sine and Cosine from the Circle
Use circular motion as a live generator for sine and cosine waves.
TrigonometrySine and cosineUnit circleAnimation
- Audience
- High school, Precalculus
- Interaction
- Animation, Visualization
- Credit
- Scott Farrar
Presented in Asilomar 2013
Asilomar 2013
Unit Circle Trigonometry
Connect a rotating point on the unit circle to trigonometric values and their geometry.
TrigonometryUnit circleDrag and notice
- Audience
- High school, Precalculus
- Interaction
- Drag and notice, Visualization
- Credit
- Scott Farrar
Presented in Asilomar 2013
Asilomar 2013
Area vs. Perimeter
Investigate which area and perimeter combinations are possible for rectangles, adapted from a Malcolm Swan prompt.
GeometryArea and perimeterModelingDrag and notice
- Audience
- Middle school, High school
- Interaction
- Drag and notice, Modeling, Visualization
- Credit
- Scott Farrar
Presented in Asilomar 2013, South Bay 2017
Triangulation Mics
Triangulation Mics
A GeoGebra drag and notice exploring triangulation mics.
GeometryDrag and notice
- Audience
- High school, General
- Interaction
- Drag and notice
- Credit
- Scott Farrar
timeangles
Time Angles
Drag the time slider and use clock hands as a changing angle diagram for noticing and conjecturing.
GeometryAnglesDrag and notice
- Audience
- Middle school, High school
- Interaction
- Drag and notice, Animation, Visualization
- Credit
- Scott Farrar
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