GEOMETRICAL KALEIDOSCOPE (2ND ED)
Boris Pritsker
CREATIVE SECONDARY SCHOOL MATHEMATICS
Alfred S. Posamentier
LEARNING TRIGONOMETRY BY PROBLEM SOLVING
Alexander Rozenblyum & Leonid Rozenblyum
GEOMETRY IN OUR THREE-DIMENSIONAL WORLD
Alfred S. Posamentier, Guenter Maresch, Bernd Thaller, Christian Spreitzer, Robert Geretschläger, David Stuhlpfarrer & Christian Dorner
INNOVATIVE TEACHING
Denise H Sutton & Alfred S. Posamentier
TOOLS TO HELP YOUR CHILDREN LEARN MATH
Alfred S. Posamentier, Gavrielle Levine, Aaron Lieberman & Danielle Sauro Virgadamo
PROBLEM-SOLVING APPROACH SUPPORT MATH INSTRUCT ELEMENT SCH
Sheldon N Rothman
X Games in Mathematics
Tim Chartier
Mathematical Labyrinths. Pathfinding
Boris Pritsker
Mathematical Nuggets from Austria
Robert Geretschläger & Gottfried Perz