Teaching middle school mathematics : activities, materials, and problems /

gan Krulik, Stephen.
Cyhoeddwyd 2000

A new sourcebook for teaching reasoning and problem solving in elementary school /

gan Krulik, Stephen.
Cyhoeddwyd 1995

A sourcebook for teaching problem solving /

gan Krulik, Stephen.
Cyhoeddwyd 1984

Problem solving : a handbook for senior high school teachers /

gan Krulik, Stephen.
Cyhoeddwyd 1989

Reasoning and problem solving : a handbook for elementary school teachers /

gan Krulik, Stephen.
Cyhoeddwyd 1993