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Solutions and Acid-Base Chemistry · Weeks 19-27

Buffers and Buffer Capacity

Students will investigate the composition and function of buffer solutions in resisting changes in pH.

Key Questions

  1. Explain how buffers resist changes in pH when an acid or base is added.
  2. Analyze the components of a buffer system and their roles.
  3. Predict the effectiveness of a buffer solution under different conditions.

Common Core State Standards

HS-PS1-2
Grade: 11th Grade
Subject: Chemistry
Unit: Solutions and Acid-Base Chemistry
Period: Weeks 19-27

About This Topic

The Harlem Renaissance was an explosion of African American artistic, literary, and musical expression centered in New York City's Harlem neighborhood. This topic covers the work of key figures like Langston Hughes, Zora Neale Hurston, and Duke Ellington, and the emergence of the 'New Negro' movement. Students examine how this cultural flowering challenged racial stereotypes and laid the intellectual groundwork for the later Civil Rights Movement.

For 11th graders, this topic is essential for recognizing the power of art as a form of political and social resistance. It highlights the global impact of jazz and the creation of a distinct African American cultural identity. Students grasp these cultural shifts faster through collaborative poetry analysis and 'listening stations' that explore the evolution of jazz and the blues.

Active Learning Ideas

Watch Out for These Misconceptions

Common MisconceptionThe Harlem Renaissance was only about entertainment and art.

What to Teach Instead

It was a deeply political movement that aimed to use 'high culture' to prove Black equality and to demand civil rights. Peer-led analysis of the NAACP's 'Crisis' magazine helps students see the political roots of the movement.

Common MisconceptionHarlem was a place of pure prosperity for Black people.

What to Teach Instead

While it was a cultural hub, most residents still faced poverty, high rents, and discrimination. A 'tenement vs. theater' activity helps students see the economic reality behind the artistic glamour.

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Frequently Asked Questions

What was the 'New Negro' movement?
Coined by Alain Locke, it described a new generation of African Americans who were assertive, proud of their heritage, and refused to submit to the Jim Crow laws and social practices of the past.
How did jazz music influence American culture?
Jazz was the first truly American art form to gain global fame. It broke down social barriers as white audiences flocked to Black clubs, and it symbolized the energy and 'modernity' of the 1920s.
Who was Zora Neale Hurston?
She was a central figure of the Harlem Renaissance, a writer and folklorist who celebrated the unique culture and language of the Black South in her novels, most notably 'Their Eyes Were Watching God.'
How can active learning help students understand the Harlem Renaissance?
Active learning strategies like 'Listening Stations' or 'Poetry Slams' allow students to engage with the art on an emotional level. By analyzing the lyrics of a blues song or the rhythm of a Langston Hughes poem, they 'feel' the message of the movement. This hands-on approach helps them understand that the Harlem Renaissance was not just a historical event, but a vibrant and ongoing contribution to American and global culture.

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