The NJ DOE Office of Assessment prepared this slide show about the Spring 2014 NJ ASK. This document is a PDF version of their PowerPoint, and its relevant sections will be shared with you at CPT and department meetings.
Ohio's Online Resource Center has a very good collection of inquiry-oriented, open-ended math questions that you can choose based upon grade level and topic! The range is from third grade to high school, so finding a quality question that meets your students' needs is easy!