Grade 3 · Social Studies · Lesson 20

Early Forms of Communication

One of the most human things we do is communicate — sharing our thoughts, stories, warnings, and discoveries with one another. The history of communication is a story of brilliant problem-solving, stretching from prehistoric caves to the global internet we use today.

What this lesson teaches

1Name the five major milestones in human communication
2Place the five milestones in chronological order from oldest to newest
3Explain the problem each new breakthrough solved

Free · 7 days · No credit card

Unlock the full HSEA system for 7 days.

Create a kid profile, open any lesson, save progress — your family uses HSEA exactly the way a paying family does. Cancel anytime. Nothing to set up, no card required.

✓ All 1,680 lessons, Grades 1–6, every subject
✓ Profiles + saved progress for every kid
✓ Final exams + printable certificates

Start your 7-day free trial →

Already convinced? See full membership plans →