Then narrow it down with guiding questions
* What flies?
* How and why do things in nature
* What has been the impact of flight on human beings?
* What is the
future of flight?
* What are the environmental impacts of
(Adapted from ASCD Interdisciplinary Curriculum: Design and
Implementation, edited by Heidi Hayes Jacobs, 1989.)
"The first day or so we all pointed to our countries. The third
or fourth day we were pointing to our continents. By the fifth day we were aware
of only one earth."
-Sultan Bin Salman al-Saud