David R. Duncan and Bonnie H. Litwiller
-
-
Pigeonholes and Mathematics
Sandra M. Pulver
-
The Place of Games in the Teaching of Mathematics and the Place of Numero Among Available Mathematics Games
Frank Drysdale and Brian McGuiness
-
Ages of John’s Three Daughters
Klaus Puhlmann
-
Unsolvable Problems: Trisection of an Angle
Klaus Puhlmann
-
Delta-K Volume 38 Issue 1
Full Issue | Delta-K
-
From the President’s Pen
Sandra Unrau
-
MCATA Executive in Action
Klaus Puhlmann
-
NCTM Standards in Action Content Standard: Geometry
Klaus Puhlmann
-
Geometry Problems Promoting Reasoning and Understanding
Alfred B. Manaster and Beth M. Schlesinger