Sal checks whether the commutative property applies for matrix multiplication. In other words, he checks whether for any two matrices A and B, A*B=B*A (the answer is NO, by the way). Created by Sal Khan.
Even in its first 30 years of existence, the U.S. Constitution had to prove its durability and flexibility in a variety of disputes. More often than not, James Madison, the "Father of the Constitution," took part in the discussion.
Uses primary
Curriculum unit on the historical context of Upton Sinclair's novel The Jungle and how the book helped reform efforts in Congress to pass the Meat Inspection Act and the Pure Food and Drug Act in 1906.
In this curriculum unit, students will explore how Chopin stages the possible roles for women in Edna's time and culture through the examples of other characters in the novella.
Social interaction is part of what makes online gaming so popular and engaging for kids. Of course, online communication can come with some risks. Show your students how to keep their gaming experiences fun, healthy, and positive.
Students learn how roadways are designed and constructed, and discuss the advantages and limitations of the current roadway construction process. They look at current practices of roadway monitoring, discuss the limitations, and consider ways to further road monitoring research. To conclude, student groups compete to design smooth, cost-efficient and sound model road bases using gravel, sand, water and rubber (representing asphalt). This lesson prepares students for the associated activity in which they act as civil engineers hired by USDOT to research through their own model experimentation how to best use piezoelectric materials to detect road damage by showing how piezoelectric transducers can indicate road damage.
Uses primary sources to explore the impacts World War I had on the struggle for civil rights in Connecticut and America.
Uses primary sources to explore the impacts World War I had on the struggle for civil rights in Connecticut and America.
Uses primary
Uses primary
Uses primary
A curriculum unit of three lessons in which students explore Hopi place names, poetry, song, and traditional dance to better understand the ways Hopi people connect with the land and environment through language. The unit is centered on the practice of growing corn. Students make inferences about language, place, and culture and also look closely at their own home environment and landscape to understand the places, language, and songs that give meaning to cultures and communities
Uses primary
Uses primary
Les Conversations Mises à Jour is a collection of authentic conversations in French that targets mostly intermediate and advanced learners of French. Each conversation highlights the shared experience of two native or near-native French speakers and provides both an oral history of that experience and a trove of cultural references.
With so much information at our fingertips, students learn what it means to "give credit" when using content they find online. Taking on the role of a detective, students learn why it's important to give credit and the right ways to do it when they use words, images, or ideas that belong to others.
Spatial visualization is the study of two- and three-dimensional objects and the practice of mental manipulation of objects. Spatial visualization skills are important in a range of subjects and activities like mathematics, physics, engineering, art and sports! In this lesson, students are introduced to the concept of spatial visualization and measure their spatial visualization skills by taking the provided 12-question quiz. Following the lesson, students complete the four associated spatial visualization activities and then re-take the quiz to see how much their spatial visualization skills have improved.
Long perceived as a recluse who wrote purely in isolation, Emily Dickinson in reality maintained many dynamic correspondences throughout her lifetime and specifically sought out dialogues on her poetry. These correspondences"”both professional and private"”reveal a poet keenly aware of the interdependent relationship between poet and reader.
This video discusses the various ways in which academic libraries and their librarians are supporting the Open Education Movement.