Sign in
Kristina Goncalves
Resources
Follow
Kristina Goncalves
Contributor
0
Followers
Relevance
Title
Modified
Created
Books
Activities
Favorites
Books
Activities
Favorites
7
Challenge Problems
Kristina Goncalves
Share
View Book
Details
Download
Isosceles Right Triangle Nine Point C…
Kristina Goncalves
Share
View Activity
Open in App
Open in App
Details
Download
Equilateral Triangle Nine-Point Circle
Kristina Goncalves
Share
View Activity
Open in App
Open in App
Details
Download
Challenge: Regular Hexagon
Kristina Goncalves
Share
View Activity
Open in App
Open in App
Details
Download
Challenge: Isosceles Right Triangle
Kristina Goncalves
Share
View Activity
Open in App
Open in App
Details
Download
Challenge: Nine-Point Circle
Kristina Goncalves
Share
View Activity
Open in App
Open in App
Details
Download
Shortest paths
Kristina Goncalves
Share
View Activity
Open in App
Open in App
Details
Download
Overlapping Squares
Kristina Goncalves
Share
View Activity
Open in App
Open in App
Details
Download
Lesson 10 - Matrices
Kristina Goncalves
Share
View Activity
Open in App
Open in App
Details
Download
Lesson 9 - Area Between Two Curves
Kristina Goncalves
Share
View Activity
Open in App
Open in App
Details
Download
Lesson 9 - Integral
Kristina Goncalves
Share
View Activity
Open in App
Open in App
Details
Download
Lesson 9 - Riemann Sum
Kristina Goncalves
Share
View Activity
Open in App
Open in App
Details
Download
Show More…
Featured Resources
More
Show Less
Poorly Drawn Quadrilaterals
Steve Phelps
Share
View Activity
Details
Download
Convex quadrilaterals
Paulo Correia
Share
View Activity
Details
Download
Angle Estimation Warmup
Andrew Knauft
Share
View Activity
Details
Download
Number Pyramids
Jennifer Silverman
Share
View Activity
Details
Download
Graph the Line
Steve Phelps
Share
View Activity
Details
Download
Flip Flop
John Golden
Share
View Activity
Details
Download
Guess My Rule (2013)
John Golden
Share
View Activity
Details
Download
5-Piece Puzzle
Duane Habecker
Share
View Activity
Details
Download
GeoGebra Pentominoes
Duane Habecker
Share
View Activity
Details
Download
right triangle paradox
sonom
Share
View Activity
Details
Download
SSA triangle: The Ambiguous Case
talljerome
Share
View Activity
Details
Download
Least Squares
timteachesmath
Share
View Activity
Details
Download
AQR Section 17: Where's the Mean?
Steve Phelps
Share
View Activity
Details
Download
Secant Slope Calculator
Jake Binnema
Share
View Activity
Details
Download
Exponential or Logistic Function that…
talljerome
Share
View Activity
Details
Download
Growth of Facebook.com
Roy Wright
Share
View Activity
Details
Download
Lower and Upper Sum of a Function
GeoGebra Materials Team
Share
View Activity
Details
Download
One-Son Policy Simulation
Steve Phelps
Share
View Activity
Details
Download
Analog Clock
Duane Habecker
Share
View Activity
Details
Download
Pendulum Wave Machine (Simulation)
Michael Borcherds
Share
View Activity
Details
Download
05.1 Measures of Central Tendency
sonom
Share
View Activity
Details
Download
Hilbert curve
Thijs
Share
View Activity
Details
Download
'Tangram' Puzzle 'Cat'
GeoGebra Translation Team German
Share
View Activity
Details
Download
Moss Egg by Robert Dixon
Bill Lombard
Share
View Activity
Details
Download
Spirograph-Epitrochoid Earth and Moon
Bill Lombard
Share
View Activity
Details
Download
Inclined Plane with Two Masses and a …
Tom Walsh
Share
View Activity
Details
Download
The Relationship Between Human Height…
Roy Wright
Share
View Activity
Details
Download
Factorization - Visual illustration o…
Ethan Hall
Share
View Activity
Details
Download
Rotating a Triangle Around a Coordina…
Steve Phelps
Share
View Activity
Details
Download
Area of a Circle - Wedge/Sector Demon…
Linda Fahlberg-Stojanovska
Share
View Activity
Details
Download
Show Less
Saving…
All changes saved
Error
A timeout occurred. Trying to re-save …
Sorry, but the server is not responding. Please wait a few minutes and then try to save again.
Terms of Service
Privacy
License
© 2025 International GeoGebra Institute
