CK-12 Foundation
Ck 12: Uncertainty in Measurements
[Free Registration/Login may be required to access all resource tools.] In the following online lesson students will learn to distinguish between accuracy and precision in measurements and to also calculate the percent error of a...
PBS
Pbs News Hour: Our Changing Economy (Lesson Plan)
A lesson in which students learn about the indicators that economists use to judge the health of the U.S. economy. Explore varied aspects of the U.S. economy and determine the impact of economic downturns on diverse segments of society.