for
Leighton McIntyre
GEORGIA BULLDOG
WESTERN MASCOT
UWI MASCOT
Something about me.
Some links I like.
The Program of Mathematics Education
MacTutor History of Mathematics Site  St. Andrew's University
Math Forum (alias Geometry Forum)
Linear Functions 
Quadratic Functions 
XB plane Investigations 

GSP Scripts 
Triangle Given Medians. 
Tangent Circles Investigations 
Orthic Triangle Proofs 
Pedal Triangles Investigations 
Parametric Equation of the Cycloid 
Polar Equation Investigations. 
Compound Interest 
Final Assignment
EMAT 6690 Essays
Egyptian Mathematics and Computers
Ptolemy's Theorem, Golden Ratio and Applications.
EMAT 6690 Instructional Unit
Geometers Sketchpad SketchPad Instructional Unit
Twenty topics marked with * are considered the best write ups by Leighton.
The problems are grouped as follows:
Geometry Problems 117
Trigonometry Problems 18  21
Algebra Problems 22  25
Conversion Problems 26  29
Mean Problems 30  35
Environmental Problem 36
Mixture of All Problems 37  40
Extra: SMADness