Take a look at these websites on Essential Questions as you develop your Learning Design Model lessons.
General Information and Explanations on Designing Essential Questions for Higher Level Thinking
Essential Questions created by Pat Clifford and Sharon Friesen from Galileo.org http://www.galileo.org/tips/essential_questions.html
Essential Questions Toolkit from FNO.org From Now On Educational Technology Journal
http://www.fno.org/nov97/toolkit.html#anchor173647
Essential Questions from Technology Connection
http://www.oakcrest.net/news/essential.pdf
Onhand Schools Guide to Essential Questions--Examples Listed
http://www.onhandschools.com/docs/private/Curriculum/OHS_EssentialQuestions.pdf
Essential Questions created by Pat Clifford and Sharon Friesen from Galileo.org http://www.galileo.org/tips/essential_questions.html
Essential Questions Toolkit from FNO.org From Now On Educational Technology Journal
http://www.fno.org/nov97/toolkit.html#anchor173647
Essential Questions from Technology Connection
http://www.oakcrest.net/news/essential.pdf
Onhand Schools Guide to Essential Questions--Examples Listed
http://www.onhandschools.com/docs/private/Curriculum/OHS_EssentialQuestions.pdf