Students use the free computer game Pingus to learn how engineers, specifically …
Students use the free computer game Pingus to learn how engineers, specifically environmental engineers, use their technical writing skills to give instructions and follow the instructions of others. Students learn to write instructions to express their ideas in clear, organized ways using descriptive, un-ambiguous sentences, as an example of one type of technical writing that important for engineers. The students write instructions enumerating how to beat a game level, which represents surveying that level for environmental problems. As a test of their instructions, students review each others' instructions and offer suggestions for improvement, and then revise their instructions to make them better. Students also see some examples of environmental problems.
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PHYSICAL SCIENCE Erlen needs your help to unlock his buried treasure! Using …
PHYSICAL SCIENCE Erlen needs your help to unlock his buried treasure! Using your knowledge of magnetism, help Erlen recover three keys buried in the ground to open his treasure chest.
ABOUT THE SCIENCE Did you know that magnets aren’t just found on your fridge? One natural mineral that acts as a magnet is magnetite, which is also known as lodestone. When suspended and dangled from a string, pieces of lodestone created the first magnetic compass. The stone would turn on the string and point to magnetic north. Magnetic objects can not resist the pull of a magnet because they have metals that contain iron, nickel or cobalt. These objects are pulled or rejected by magnets because of an invisible magnetic force produced by a magnet, which causes magnetic materials to either be attracted or repelled. The magnetic field that surrounds magnets is created by the North and South poles on magnets. Like the North and South poles on Earth, these are the opposite ends on a magnet, which will either attract opposite poles (i.e. North and South) or repel like poles (e.g. North and North). A compass is not the only use for a magnet in everyday life. Your refrigerator door uses a magnet to make sure the door closes and they are uses for recycling drink bottles to separate out the caps from the containers. On a larger scale, they are used in Japan on the Maglev (magnetic levitation) trains on the tracks where the train floats. These super conductive magnets are working on the repulsion of the magnets to keep the trains up from the rails, free of friction.
To further their understanding of sound energy, students identify the different pitches …
To further their understanding of sound energy, students identify the different pitches and frequencies created by a vibrating ruler and a straw kazoo. They create high- and low-pitch sound waves.
"Pixar in a Box is a behind-the-scenes look at how Pixar artists …
"Pixar in a Box is a behind-the-scenes look at how Pixar artists do their jobs.
You will be able to animate bouncing balls, build a swarm of robots, and make virtual fireworks explode.
The subjects you learn in school — math, science, computer science, and humanities — are used every day to create amazing movies at Pixar.
This collaboration between Pixar Animation Studios and Khan Academy is sponsored by Disney. If you have questions or ideas, email us at piab@khanacademy.org."
Aperçu : Bienvenue dans les leçons de codage Make Stuff Move. Cette …
Aperçu : Bienvenue dans les leçons de codage Make Stuff Move. Cette première leçon va vous montrer comment définir la couleur et la luminosité du pixel et l'allumer sur notre bouclier d'animation Make Stuff Move.
This short video and interactive assessment activity is designed to teach fourth …
This short video and interactive assessment activity is designed to teach fourth graders about adding, subtracting, and multiplying with parentheses - missing operation.
This short video and interactive assessment activity is designed to teach fourth …
This short video and interactive assessment activity is designed to teach fourth graders about placing the missing parentheses to make the equation true.
Student groups use a "real" 3D coordinate system to plot points in …
Student groups use a "real" 3D coordinate system to plot points in space. Made from balsa wood or wooden dowels, the system has three axes at right angles and a plane (the XY plane) that can slide up and down the Z axis. Students are given several coordinates and asked to find these points in space. Then they find the coordinates of the eight corners of a box/cube with given dimensions.
This task can be implemented in a variety of ways. For a …
This task can be implemented in a variety of ways. For a class with previous exposure to properties of perpendicular bisectors, part (a) could be a quick exercise in geometric constructions, and an application of the result. Alternatively, this could be part of an introduction to perpendicular bisectors, culminating in a full proof that the three perpendicular bisectors are concurrent at the circumcenter of the triangle, an essentially complete proof of which is found in the solution below.
This is a simple exercise in creating equations from a situation with …
This is a simple exercise in creating equations from a situation with many variables. By giving three different scenarios, the problem requires students to keep going back to the definitions of the variables, thus emphasizing the importance of defining variables when you write an equation. In order to reinforce this aspect of the problem, the variables have not been given names that remind the student of what they stand for. The emphasis here is on setting up equations, not solving them.
This is an activity about the way distance, albedo, and atmosphere affect …
This is an activity about the way distance, albedo, and atmosphere affect the temperature of a planet. Learners will create a planet using a computer game and change features of the planet to increase or decrease the planet's temperature. They will then discuss their results in terms of greenhouse strength and the presence of liquid water. This lesson is part of Project Spectra, a science and engineering education program focusing on how light is used to explore the Solar System.
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