Sign in
Search
GeoGebra
Home
Resources
Profile
Classroom
App Downloads
The Art of Problem Posing
Author:
Steve Phelps
"What if each attribute were not so; what could it be then?"
Brown & Walter, 2005
https://www.amazon.com/Art-Problem-Posing-Stephen-Brown/dp/0805849777
New Resources
Bessel Function
bewijs stelling van Pythagoras
apec
Sunny Variations
JLA Portrait
Discover Resources
Math 1
Parallel Lines and Transversale
quiz proficient
Baltic_Way_2007_P15
Kopie von Newton's Method
Discover Topics
Probability
Special Points
Matrices
Symmetry
Rectangle