The land bridge
Open the map in 20,000 BC and turn on Ice Age Seas. Find Beringia between Siberia and Alaska. Compare it with the narrow strait of today: how wide is the land?
Open this view on the mapOld Stone Age · At least 15,000 years ago
In the Ice Age a wide land joined Siberia and Alaska. Students use the Ice Age Seas layer to find Beringia, follow the first people south to the tip of South America, and see why scientists still argue about the route.
Live lesson · new in Classroom
Put the board on the projector. Students join with a six-digit code, no account needed, and tap the map: where was the frontier, where did the grain come from. Their pins drop in together when you reveal, and the closest student takes the round.
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Read aloud
In the Ice Age a wide land joined Siberia and Alaska. Students use the Ice Age Seas layer to find Beringia, follow the first people south to the tip of South America, and see why scientists still argue about the route.
By the end of the lesson, students can
Project the map, or let students follow on their own devices. Each step opens the map at the right year and place.
Open the map in 20,000 BC and turn on Ice Age Seas. Find Beringia between Siberia and Alaska. Compare it with the narrow strait of today: how wide is the land?
Open this view on the mapMove south along the Pacific coast of Canada. In the Ice Age, huge ice sheets covered most of this land (the map does not draw them). Was the coast or the interior an easier road south?
Open this view on the mapJump to 12,500 BC and travel to southern Chile. People camped at Monte Verde about 14,500 years ago. Zoom out: how far is it from Beringia?
Open this view on the mapPick two or three. They run from what happened to why it mattered.
No Rule History ruler lived this early. Play one round as Moctezuma II, a ruler of the Americas thousands of years later, and discuss: scientists think the distant ancestors of his people came through Beringia. What had to happen in between for cities and empires to appear?
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