Problem Posing with Realistic Mathematics Education Approach in Geometry LearningMahendra, R; Slamet, I; Budiyono, · Journal of Physics: Conference Series · 2017

Problem posing via “what if not?” strategy in solid geometry — a case studyIlana Lavy; Irina Bershadsky · 2003

Engaging in problem posing activities in a dynamic geometry setting and the development of prospective teachers’ mathematical knowledgeIlana Lavy; Atara Shriki · 2010

ProblemsPaul Bracken, Stephen J. Herschkorn, Ovidiu Bagasar, Ovidiu Furdui, Mihaly Bencze, Michael W. Botsko, Courtney H. Moen, William P. Wardlaw, John Christopher, Ken Ross, Albert Stadler, Michael Goldenberg, Mark Kaplan, Larry W. Cusick, Maria Nogin, Larry Hoehn, Péter Ivády and Donald Jay Moore · Mathematics Magazine · 2007

Averages on the MoveLarry Hoehn and Ivan Niven · Mathematics Magazine · 1985

Outside the boxLarry Hoehn · The Mathematics Teacher · 2002

Angles formed by chords and secantsLarry Hoehn · The Mathematics Teacher · 2000

Median of a trapezoidLarry Hoehn · The Mathematics Teacher · 1999

A 5-Circle Incidence TheoremJ. Chris Fisher, Larry Hoehn, Eberhard M. Schröder · Mathematics Magazine · 2014

Geometrical Inequalities via BisectorsLARRY HOEHN · The Mathematics Teacher · 1989

Ponderings on Pocket-sized PolyhedraS. Louise Gould · The Mathematics Teacher · 2012

What Are These Things Called Variables?SIGRID WAGNER · The Mathematics Teacher · 1983

The Many Uses of Algebraic VariablesRandolph A. Philipp · The Mathematics Teacher · 1992

Finding Skewed Lattice RectanglesDick J. Smith and Eric F. Errthum · The Mathematics Teacher · 2012

Babylonian QuadraticsROBERT D. McMILLAN · The Mathematics Teacher · 1984

Understanding Connections between Equations and GraphsEric J. Knuth · The Mathematics Teacher · 2000

The Purple Milk ProblemKasi C. Allen · The Mathematics Teacher · 2012

The Birthday Problem, EmpiricallyDustin L. Jones · The Mathematics Teacher · 2012