Learn on PengiCalifornia myWorld Interactive, Grade 5Chapter 1: The First Americans

Lesson 1: Ancient American Civilizations

In this Grade 5 lesson from California myWorld Interactive, students explore how geography and climate shaped the lives of ancient American Indian civilizations across North America. Students learn key concepts including migration, hunter-gatherer societies, nomadic life, and the development of agriculture and irrigation as early peoples adapted to and modified their environments. The lesson traces the arrival of the first Americans from Asia via the Beringia land bridge approximately 15,000 years ago through the rise of permanent settlements in regions like the Southwest and Pacific Northwest.

Section 1

How the First Peoples Arrived in the Americas

About 20,000 years ago, during the last Ice Age, much of the world's water was frozen into huge glaciers. This process uncovered a wide strip of land that connected Asia and North America. This land bridge is now called Beringia.

Groups of hunter-gatherers from Asia followed herds of large animals, like mammoths, across this land. These people depended on hunting animals and gathering plants for their food.

Over many centuries, these early peoples migrated south. They spread throughout North and South America, adapting to new environments and becoming the first Americans.

Section 2

Introduction to Adaptation: The Inuit

Key Idea

Early Native Americans settled across North America in many different environments. To survive, they had to adapt to the land around them. This meant using the natural resources — like plants, animals, and stone — to create everything they needed for food, shelter, and clothing.

For example, the Inuit people thrived in the harsh, icy Arctic. They hunted seals, whales, and walruses. They used every part of the animal for food, fuel for lamps, warm clothing, and tools like harpoons. They even built homes called igloos from snow.

Section 3

People Farm and Build Civilizations

Key Idea

Around 7,000 years ago, some early peoples in the Americas discovered how to plant and raise their own food. This practice of agriculture meant they no longer had to move around to hunt and gather. They could stay in one place.

With a steady food supply from farming, groups could build permanent villages. Over time, some of these villages grew into large, organized cities.

Section 4

Adapting and Modifying Environments: Mound Builders and Puebloans

Key Idea

As people settled across North America, they adapted to their unique environments. In the dry deserts, the Hohokam dug long canals to irrigate their crops. Nearby, the Ancestral Pueblo built impressive homes into the sides of cliffs for shelter and safety.

Farther east, in the fertile river valleys, cultures known as the Mound Builders created huge earthen mounds. These structures served as temples, burial places, and homes for their leaders, showing how they shaped their landscape.

Lesson overview

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Section 1

How the First Peoples Arrived in the Americas

About 20,000 years ago, during the last Ice Age, much of the world's water was frozen into huge glaciers. This process uncovered a wide strip of land that connected Asia and North America. This land bridge is now called Beringia.

Groups of hunter-gatherers from Asia followed herds of large animals, like mammoths, across this land. These people depended on hunting animals and gathering plants for their food.

Over many centuries, these early peoples migrated south. They spread throughout North and South America, adapting to new environments and becoming the first Americans.

Section 2

Introduction to Adaptation: The Inuit

Key Idea

Early Native Americans settled across North America in many different environments. To survive, they had to adapt to the land around them. This meant using the natural resources — like plants, animals, and stone — to create everything they needed for food, shelter, and clothing.

For example, the Inuit people thrived in the harsh, icy Arctic. They hunted seals, whales, and walruses. They used every part of the animal for food, fuel for lamps, warm clothing, and tools like harpoons. They even built homes called igloos from snow.

Section 3

People Farm and Build Civilizations

Key Idea

Around 7,000 years ago, some early peoples in the Americas discovered how to plant and raise their own food. This practice of agriculture meant they no longer had to move around to hunt and gather. They could stay in one place.

With a steady food supply from farming, groups could build permanent villages. Over time, some of these villages grew into large, organized cities.

Section 4

Adapting and Modifying Environments: Mound Builders and Puebloans

Key Idea

As people settled across North America, they adapted to their unique environments. In the dry deserts, the Hohokam dug long canals to irrigate their crops. Nearby, the Ancestral Pueblo built impressive homes into the sides of cliffs for shelter and safety.

Farther east, in the fertile river valleys, cultures known as the Mound Builders created huge earthen mounds. These structures served as temples, burial places, and homes for their leaders, showing how they shaped their landscape.