Grade 3 · Social Studies · Lesson 21

How Technology Changed Life

Imagine waking up with no electricity, no running water, no stove, and no way to contact anyone more than a few miles away. For most of human history, that was everyday life. Technology — tools, machines, and systems created by humans to solve problems — has transformed nearly every part of how we live, work, eat, travel, stay healthy, and learn.

What this lesson teaches

1Compare life in the past to life today across farming, medicine, travel, and communication
2Name the key inventions that transformed each area of daily life
3Explain how specific technologies solved problems people faced in the past

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