State of New Jersey, Department of Education

Classroom Assessment - Short Answer/Open-ended Questions

Building Language Through Brainstorming from Scholastic.com In the article, there is a section dealing with open-ended questions and brainstorming.
An Alien is Here Language Arts activity for grades 5-8 with open-ended questions.
Open-ended Questions Open-ended questions should begin with words such as "why" and "how" or phrases such as "What do you think about . . ." Open-ended questions should lead students to think analytically and critically.

How to make lab activities more open ended.

From the California Science Teachers Association.