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Ecology and Environmental Dynamics · Weeks 19-27

Biogeochemical Cycles: Water and Carbon

Investigates the movement of water and carbon through the Earth's atmosphere, oceans, land, and living organisms.

Key Questions

  1. Explain the key processes involved in the global water cycle.
  2. Analyze the major reservoirs and fluxes of carbon in the carbon cycle.
  3. Predict the impact of human activities on the balance of the carbon cycle.

Common Core State Standards

HS-LS2-5
Grade: 11th Grade
Subject: Biology
Unit: Ecology and Environmental Dynamics
Period: Weeks 19-27

About This Topic

The Great Migration covers the massive movement of millions of African Americans from the rural South to the urban North and West between 1916 and 1970. This topic examines the 'push' factors of Jim Crow violence and economic hardship, and the 'pull' factors of factory jobs and the promise of greater freedom. Students analyze how this migration fundamentally changed the political, cultural, and social landscape of American cities.

For 11th graders, this topic is essential for understanding the nationalization of the 'race problem' and the origins of modern urban Black communities. It highlights the agency of Black families in seeking a better life. Students grasp these demographic shifts faster through collaborative mapping projects and role-playing the difficult decisions faced by migrant families.

Active Learning Ideas

Watch Out for These Misconceptions

Common MisconceptionThe North was a 'promised land' free of racism.

What to Teach Instead

While there were no Jim Crow laws, migrants faced intense 'de facto' segregation, job discrimination, and violent backlash from white residents. Peer-led analysis of 'restrictive covenants' in Northern housing helps students see the reality of Northern racism.

Common MisconceptionThe Great Migration happened all at once during WWI.

What to Teach Instead

It was a decades-long process that occurred in two major waves, with the second wave during and after WWII being even larger. A 'migration wave' graph activity helps students see the long-term nature of the movement.

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Frequently Asked Questions

What were the main 'push' factors of the Great Migration?
The primary push factors were the oppressive Jim Crow laws, the constant threat of lynching and racial violence, and the economic failure of the sharecropping system, especially after the boll weevil infestation destroyed cotton crops.
How did the Great Migration change Northern cities?
It led to the creation of vibrant Black neighborhoods like Harlem and the South Side of Chicago, which became centers of political and cultural power. However, it also led to increased racial tension and the development of urban ghettos due to housing discrimination.
What was the 'Red Summer' of 1919?
It was a series of violent race riots that broke out in dozens of cities across the U.S. as white residents reacted with violence to the growing presence and economic competition of Black migrants and returning WWI veterans.
How can active learning help students understand the Great Migration?
Active learning strategies like 'Decision-Making Role Plays' help students empathize with the immense courage it took to leave everything behind. By weighing the 'push' and 'pull' factors themselves, they realize that the migration was a rational and brave response to an impossible situation. This hands-on approach helps them see the Great Migration as a foundational event that reshaped the entire nation, not just the Black community.

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