Ratio errors confuse a dodgeball coach as two teams face off in …
Ratio errors confuse a dodgeball coach as two teams face off in an epic tournament. See how mathematical techniques such as tables, graphs, measurements and equations help to find the missing part of a proportion.
In which John Green teaches you about one of the least funny …
In which John Green teaches you about one of the least funny subjects in history: slavery. John investigates when and where slavery originated, how it changed over the centuries, and how Europeans and colonists in the Americas arrived at the idea that people could own other people based on skin color.
Slavery has existed as long as humans have had civilization, but the Atlantic Slave Trade was the height, or depth, of dehumanizing, brutal, chattel slavery. American slavery ended less than 150 years ago. In some parts of the world, it is still going on. So how do we reconcile that with modern life? In a desperate attempt at comic relief, Boba Fett makes an appearance.
Explore the interactions between various combinations of two atoms. Turn on the …
Explore the interactions between various combinations of two atoms. Turn on the force arrows to see either the total force acting on the atoms or the individual attractive and repulsive forces. Try the "Adjustable Attraction" atom to see how changing the parameters affects the interaction.
Explore the interactions between various combinations of two atoms. Turn on the …
Explore the interactions between various combinations of two atoms. Turn on the force arrows to see either the total force acting on the atoms or the individual attractive and repulsive forces. Try the "Adjustable Attraction" atom to see how changing the parameters affects the interaction.
Introduction If you were asked to draw the structure of an atom, …
Introduction
If you were asked to draw the structure of an atom, what would you draw? Throughout history scientists have accepted five atomic models. Our perception of the atom has changed from the early Greek model because of clues or evidences that have been gathered through scientific experiments. As more evidence was gathered old models were discarded or improved upon. Your goal is to trace the atomic theory through history.
In this lesson, the students will discover the relationship between an object's …
In this lesson, the students will discover the relationship between an object's mass and the amount of space it takes up (its volume). The students will also learn about the concepts of displacement and density.
Cette activité te permettra de connaître les dangers qui existent pour les …
Cette activité te permettra de connaître les dangers qui existent pour les oreilles. On a parfois l’impression que les problèmes auditifs surviennent avec l’âge, mais d’autres facteurs peuvent affecter l’ouïe, même à un très jeune âge.
In this simulation of a doctor's office, students play the roles of …
In this simulation of a doctor's office, students play the roles of physician, nurse, patients, and time-keeper, with the objective to improve the patient waiting time. They collect and graph data as part of their analysis. This serves as a hands-on example of using engineering principles and engineering design approaches (such as models and simulations) to research, analyze, test and improve processes.
What drives changes to classic myths and fables? In this lesson students …
What drives changes to classic myths and fables? In this lesson students evaluate the changes Disney made to the myth of "Hercules" in order to achieve their audience and purpose.
Students explore using electronic messaging and Internet abbreviations for specific purposes and …
Students explore using electronic messaging and Internet abbreviations for specific purposes and examine the importance of using a more formal style of writing based on their audience.
In this lesson, students are introduced to audio engineers. They discover in …
In this lesson, students are introduced to audio engineers. They discover in what type of an environment audio engineers work and exactly what they do on a day-to-day basis. Students come to realize that audio engineers help produce their favorite music and movies.
Vous trouverez ici des fichiers mp3 en 14 langues, enregistrés par des …
Vous trouverez ici des fichiers mp3 en 14 langues, enregistrés par des locuteurs natifs, libres de droits pour une utilisation pédagogique ou personnelle pour l’entraînement à la compréhension de l’oral en français, anglais, allemand, espagnol, italien, russe, portugais, chinois, occitan, arabe, catalan, corse, créole et hébreu.
Students keep a daily diary that records how and when they listen …
Students keep a daily diary that records how and when they listen to audio texts, then analyze the details and compare their results to published reports on American radio listeners.
This art history video discussion examines these portraits by August Sander: "Pastry …
This art history video discussion examines these portraits by August Sander: "Pastry Cook", gelatin silver print, 1928, "Secretary at a Radio Station", Cologne, gelatin silver print, c. 1931, and "Disabled Man", gelatin silver print, 1926.
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