Helen Schroeder

Calculus: One Lesson Study at a Time

Joy Becker, Christopher P Bendel, Helen Schroeder, 2008 .

Inquiry and the development of positive attitudes

Helen Schroeder, Frank L. Ryan, Roger T. Johnson, 1974 .

A college lesson study in calculus, preliminary report

Helen Schroeder, Joy Becker, Petre Ghenciu, 2008 .