University of Regina (Canada)
University of Regina: Math Central: Sample Problems for Grades 1 5
The Saskatoon Board of Education gives samples of math word problems for pairs or small groups of students. At each grade level three types of problems are provided: translation, process, and realistic.
National Council of Teachers of Mathematics
Nctm: Figure This: Math Challenges for Families
Students, teachers, and parents alike will enjoy this challenging math site. It contains a clever brain teaser section plus creative problems related to algebra, geometry, measurement, numbers, statistics, and probability. A Spanish...
Other
Teach Net: Brain Binders
Brain binders are great teacher sources for problem solving and critical thinking with geometry. Students fold sheets of paper to create solid colors on each side. Various levels are included starting with two folds through five folds.