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American History: The Early Years
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Web Activity Lesson Plan
CHAPTER 16: Sectional Differences
"Shock Wave"

Introduction
Students have read how developments in transportation and communications helped the North's economy grow. In this lesson, students will learn more about the development of the telegraph.

Lesson Description
Students will go to the Sparks Telegraph Key Review site and learn more about the development of the telegraph. They will then answer questions about what they have learned.

Instructional Objective
Students will be able to identify the technological advancements that pre-dated radio.

Student Web Activity Answers
1. the invention of radio
2. so the navy could communicate with ships at sea
3. because sparks literally flew from the key as the code was sent 4. Thomas Edison-made a practical lightbulb; Joseph Priestley-discovered oxygen; Joseph Henry-built the first electric motor; Cyrus Field-transatlantic cable; Samuel Morse-invented the telegraph

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