Sign in
Trevor Leach
Resources
Following
Follow
Trevor Leach
Contributor
15
Followers
Mathematics Educator
Relevance
Title
Modified
Created
Books
Activities
Favorites
Books
Activities
Favorites
Chapter 10 Section 1 Activities
Trevor Leach
Share
View Activity
Details
Download
Net and Surface Area of Triangular Prism
Trevor Leach
Share
View Activity
Open in App
Open in App
Details
Download
12.8 Activity 12S (How are Perimeter …
Trevor Leach
Share
View Activity
Open in App
Open in App
Details
Download
Activity 12R (Perimeter Misconceptions)
Trevor Leach
Share
View Activity
Details
Download
12.9 Activity 12V (Proof of the Pytha…
Trevor Leach
Share
View Activity
Details
Download
12.6: Activity 12O (Why the Area Form…
Trevor Leach
Share
View Activity
Open in App
Open in App
Details
Download
12.6: Activity 12M (How Big is Pi?)
Trevor Leach
Share
View Activity
Open in App
Open in App
Details
Download
12.5 Activity 12K
Trevor Leach
Share
View Activity
Details
Download
12.4 Activity 12J
Trevor Leach
Share
View Activity
Details
Download
12.4 Activity 12I
Trevor Leach
Share
View Activity
Details
Download
12.4: Activity 12H
Trevor Leach
Share
View Activity
Details
Download
Squash a Parallelogram
Trevor Leach
Share
View Activity
Open in App
Open in App
Details
Download
Show More…
Featured Resources
More
Show Less
Equivalent Ratios
Duane Habecker
Share
View Activity
Details
Download
Poorly Drawn Quadrilaterals
Steve Phelps
Share
View Activity
Details
Download
Convex quadrilaterals
Paulo Correia
Share
View Activity
Details
Download
Gauss-Jordan 2x2 Elimination
Auston B Cron
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
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: Mean but Sensitive
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
Analog Clock
Duane Habecker
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
Kaleidoscope
Michael Borcherds
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
Triangle Paradox (Missing square puzzle)
Michael Borcherds
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
