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Website
World War 1

Worldwar1.com: Trenches on the Web: Introduction

For Students 9th - 10th
Exhaustive site including everything you need to know about World War I. Includes numerous links and a reference library. Contains a long list of biographies from this period.
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Unit Plan
National Archives (UK)

National Archive: The Great War: 1914 1918

For Students 9th - 10th
Students can examine original sources and how these have been used to support different viewpoints and perspectives on the Great War.