The Imperial War Museum has some great instructional resources on the main historical events from World War I through the Cold War. Simply click on "Events and Themes" and type in a key word like "Cold War" and a series of downloadable PDFs appear. Some of the results for the Cold War include source packs and instructional activities. Here's a link to one called "A Mad World, Why did civilians live in fear during the Cold War? Thanks to Jeff Feinstein for the great link.
The museum also has a series of 32 podcasts about World War I. They are part of the museum's exhibit on the centenary of World War I.