Texas TEKS 8.6.B

Social Studies8th GradeHistory

The Standard

analyze the westward growth of the nation, including the Louisiana Purchase and Manifest Destiny

Texas Essential Knowledge and Skills for Social Studies

Teacher's field guide

What Students Need to Do: Students explain how land acquisition and the belief in Manifest Destiny pushed United States settlement westward. They trace changes on maps and analyze effects on settlers, Native nations, Mexican residents, and enslaved people.
What Mastery Looks Like: Students can use a map, timeline, and primary source to connect westward growth to specific causes and effects. They can explain that expansion increased United States territory while causing conflict, removal, and displacement.
Common Misconceptions: Students may think the Louisiana Purchase included all land west to the Pacific. They may treat Manifest Destiny as a law rather than a widely used belief. They may also describe western land as empty or expansion as peaceful and inevitable.
How to Assess It: Give students an 1803 map and ask them to mark the Louisiana Purchase. Then have them write two sentences explaining how Manifest Destiny encouraged later expansion and affected one group.

Lesson moves

Have pairs build a floor map with labeled territory cards, then place the Louisiana Purchase and later acquisitions in chronological order.
Ask students to respond to this prompt: Was westward expansion progress, conquest, or both? Support your claim with two facts.
Run a cause-and-effect card sort using events, beliefs, land gains, settlement patterns, conflicts, and consequences for different groups.
Use a local map to identify nearby Indigenous homelands and research how United States expansion changed control of that land.

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