Grade 4 Spring — US National Geography and Westward Expansion (1803–1890): Whose Land, Whose Story, Whose Future?
History · GEO
G4 (D2.Geo.1-2.3-5 + D2.Geo.7-8.3-5; CA HSS 5.8 G5 entry; TEKS 5.6 G5 entry)
hist.g4.s.geo.westward_route_mapping
Apply distance, scale, and route-mapping skills to overland trails — Oregon Trail, California Trail, Mormon Trail, Santa Fe Trail, Pony Express, Lewis and Clark route
Apply geographic skills to map the major overland trails: Oregon Trail (1841–1869, 2,170 miles from Independence MO to Oregon City OR); California Trail (1840s, branching from Oregon Trail); Mormon Trail (1846–1869, 1,300 miles from Nauvoo IL to Salt Lake Valley UT); Santa Fe Trail (1821–1880, 900 miles from Independence MO to Santa Fe NM); Pony Express (1860–1861, 10-day mail route from St. Joseph MO to Sacramento CA); Lewis and Clark expedition route (1804–1806). Use scale and distance computation; identify landforms crossed (Great Plains, Rockies, Great Basin, Sierra Nevada); identify Indigenous-nation homelands the trails crossed. Vocabulary: trail, scale, distance, route, terminus, branching.
Mastery threshold
80%
Min instances
10
Typical minutes
50
Spaced intervals (days)
1, 3, 7, 14, 30, 60
Prereqs
- Identify US national physical geography — major landforms, rivers, lakes, climate zones across 5 regions plus Alaska and Hawaii
- Identify the 50 states and their capital cities; locate the US in North America; apply basic US map literacy
- Analyze the Louisiana Purchase (1803) and Lewis and Clark expedition (1804–1806) with four perspectives
Common misconceptions
- Treating overland trails as 'empty wilderness' (the trails crossed homelands of dozens of Indigenous nations)
- Confusing the Oregon, California, and Mormon trails (they branched from common starting points)
- Underestimating the distance and time (2,000+ miles, 4–6 months on foot or by wagon)