Instructional Video
Khan Academy

Khan Academy: Gdp and the Circular Flow of Income and Expenditures

9th - 10th
What happens when a good is not finished in a given period? See how to calculate the contribution to GDP over two periods.
Instructional Video
Khan Academy

Khan Academy: Expenditure Approach to Calculating Gdp Examples

9th - 10th
In this video, Sal Khan explores how purchases of different things affect GDP, or why they wouldn't! [8:06]