PBL - Driving Questions
What were the causes of the Civil War?
No - Not open-ended and doesn't require critical thinking and debate. What would be abetter question?
What was the most important cause of the Civil War?
How can we, as NASA scientists, write a proposal that recommends which planet should be explored by the next space probe?
Yes. Engages the students and create curiosity through relevance to their world.
How are measurement skills and our knowledge of math and geometry related to building a dream park with a given set of dimensions and budget?
no - It is a good essential question. A better way to reword:
In what way can we design, plan, and pitch a needed park for our community?