K20 LEARN
Deconstructing Reconstruction: The Reconstruction Era
High schoolers examine the Reconstruction programs instituted following the American Civil War, the potential for change these efforts offered, and the realities that occurred. Guided by a PowerPoint presentation, class members read a...
Core Knowledge Foundation
The Civil War
A unit covers many aspects of the Civil War. Over six weeks, fifth graders delve deep into the history of slavery, the Civil War—before, during, and after—Abraham Lincoln, women's contributions, the Emancipation Proclamation, and...
Curated OER
The Laws of Sines and Cosines Made Simple!
Learners study the law of sine and cosine. In this pre-calculus lesson, students create a triangle and identify the different ratios of a non-right triangle. They use the properties of sine and cosine to solve.
Curated OER
The Laws of Sines and Cosines Made Simple!
Students explore the concept of law of sines and cosines. In this law of sines and cosines lesson plan, students construct a triangle tool from card stock and markers. Students use their triangle tool to aid in solving problems...