All Aboard!

 

Lesson Observed: All Aboard! Racing to Build a Railroad Across Colorado

This week in my observation classroom, I observed a social studies lesson that followed the 5E instructional model and focused on how Colorado’s physical environment, particularly mountains and rivers, influenced human activities such as building transportation systems. Through a hands-on railroad activity, students explored how Colorado’s mountainous terrain made it challenging to develop rail and road systems needed to move people and goods across the state. This lesson reflected inquiry-based geography instruction where students actively explored how physical environments place constraints on human activity rather than learning about these ideas through lecture alone (Kopp, 2017; National Council for the Social Studies [NCSS], 2017). The guiding question for the lesson was: How did the geography of Colorado affect the development of railroad lines?

Standards

G2a: Describe how the physical environment provides opportunities for and places constraints on human activities.
G2d: Describe how places in Colorado are connected by movement of goods and services and technology.

Engage

The lesson began with a conversation about why railroads became necessary as more people settled in Colorado. Students discussed how horses and buggies were no longer fast enough and why new transportation technology was needed. The teacher then asked students what kinds of problems the land itself might cause when building roads and railways across Colorado. Students quickly identified mountains and rivers as major obstacles, which helped activate prior knowledge and set the purpose for the lesson.

Explore / Explain

Students were introduced to the Giant Map railroad challenge, where their task was to help the Colorado Territory by building a railroad from east to west across the state while passing through a major Front Range city. The teacher explained that railroads needed to pass through cities because they were important locations for supplies and people traveling across the mountains.

Students worked with two different types of track: narrow gauge and standard gauge. The size difference was easy for students to see and handle. Narrow gauge tracks were shorter and used in mountainous areas, while standard gauge tracks were longer and used on flatter land. As shown in the photo included in this post. This made geography a problem to solve rather than just background information.

Students then worked in teams during a railroad race designed to model real historical challenges. Each team represented a competing railroad company attempting to be the first to cross the Rocky Mountains and deliver supplies to the Colorado Territory. Teams were split between the east and west state lines of the large Colorado floor map and had to meet in the middle. Each team was required to route their railroad through one Front Range city, and only one team could claim each city. This forced teams to think strategically and adjust their plans.

To ensure equitable participation, only one student from each team could be on the map at a time. Students took turns laying track while the rest of the team planned routes, discussed obstacles, and problem-solved. On each turn, students could place or remove one of their own track pieces. Tracks could not overlap, which often led teams to rethink their routes. When two teams attempted to claim the same city, the conflict was resolved through a “railroad war” using a die roll. The losing team had to reroute, mirroring the real competition that existed between railroad companies.

Throughout the activity, students collaborated, negotiated decisions, and revised plans based on geographic constraints. This exploration allowed students to experience firsthand how Colorado’s geography shaped transportation routes and human decision-making.

Elaborate 

After the race, students discussed how real railroad companies dealt with challenges such as overlapping routes. This conversation helped connect the activity to real historical events and reinforced the idea that there was no single correct solution.

Evaluate

To conclude the lesson, students connected the railroad challenge to modern transportation by discussing where highways are built today and why. Student responses showed a clear understanding of how geography continues to shape transportation decisions.

Reflection

Observing this lesson demonstrated how effective inquiry-based, hands-on learning can be. Students were not just learning about geography, they were experiencing how it affects human decisions. The railroad activity aligned with inquiry-based learning principles discussed in our Week 2 readings, where students build understanding through collaboration, exploration, and problem-solving (Kopp, 2017; Lange et al., 2021). The combination of the 5E model, teamwork, and physical materials made complex geographic concepts meaningful and accessible for students.

Resources

Kopp, E. (2017). Teaching social studies today: Research and practice for the elementary classroom. Routledge.
Kopp, E. (2015). Teaching science today: Inquiry-based instruction for the elementary classroom (2nd ed.). Shell Education.
Lange, K., Range, B., & Welsh, K. (2021). Inquiry-based learning in science education (Chapter 4). In Inquiry-based approaches in elementary education.
National Council for the Social Studies. (2017). The C3 framework for social studies state standards: Guidance for enhancing the rigor of K–12 civics, economics, geography, and history (pp. 23–26). https://www.socialstudies.org
Australian Academy of Science. (n.d.). Primary Connections: The 5E instructional model [Video series]. YouTube.