general

Open-Ended Problem Solving On the Web    http://mste.illinois.edu/users/aki/open_ended/

– Mathematics Lessons and Lesson Study at Japanese Schools  :Akihiko Takahashi

http://mste.illinois.edu/users/aki/open_ended/JapaneseMathLessons/

Steps for Better Thinking Rubric   http://www.wolcottlynch.com/Downloadable_Files/Rubric_060209.pdf

Teaching and Evaluating ‘Open-Ended’ Problems : Rama Klavir and Sarah Hershkovitz

http://www.cimt.plymouth.ac.uk/journal/klavir.pdf

Problem Solving  http://www.tuition.com.hk/problem-solving.htm

Tutorial for Optimizing and Documenting Open-Ended Problem Solving Skills    http://www.wolcottlynch.com/tutorial/tutintro.html

Math

Open-Ended Math Problems    http://www.fi.edu/school/math2/

Open Ended Math Problems    http://www.asij.ac.jp/elementary/Lessons/open_ended_math_problems.htm

Problem solving, word problems, and math projects online   http://www.homeschoolmath.net/online/problem_solving.php

How to Answer Open Ended Math Problems   http://www.ehow.com/how_8405590_answer-open-ended-math-problems.html