# 172 Results

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This Demonstration illustrates the concept of rotating a 2D polygon. The rotation matrix is displayed for the current angle. The default polygon is a square that you can modify.

Subject:
Mathematics
Geometry
Material Type:
Activity/Lab
Diagram/Illustration
Homework/Assignment
Interactive
Simulation
Teaching/Learning Strategy
Author:
Mito Are
Valeria Antohe
08/03/2020
Unrestricted Use
CC BY
Rating

This unit on thermal energy transfer begins with students testing whether a new plastic cup sold by a store keeps a drink colder for longer compared to the regular plastic cup that comes free with the drink. Students find that the drink in the regular cup warms up more than the drink in the special cup. This prompts students to identify features of the cups that are different, such as the lid, walls, and hole for the straw, that might explain why one drink warms up more than the other.

Students investigate the different cup features they conjecture are important to explaining the phenomenon, starting with the lid. They model how matter can enter or exit the cup via evaporation However, they find that in a completely closed system, the liquid inside the cup still changes temperature. This motivates the need to trace the transfer of energy into the drink as it warms up. Through a series of lab investigations and simulations, students find that there are two ways to transfer energy into the drink: (1) the absorption of light and (2) thermal energy from the warmer air around the drink. They are then challenged to design their own drink container that can perform as well as the store-bought container, following a set of design criteria and constraints.

Subject:
Engineering
Physical Science
Material Type:
Activity/Lab
Assessment
Lesson Plan
Simulation
Student Guide
Unit of Study
Author:
Assessment Specialist David Fortus
BSCS Science Learning Ari Jamshidi
BSCS Science Learning Emily Harris
BSCS Science Learning Michael Novak
BSCS Science Learning Zoe Buck Bracey
Charles A. Center at UT-Austin Dawn Novak
Lindsey Mohan
Maple School Tyler Scaletta
North Shore Country Day School Katie Van Horne
Northwestern University Tracey Ramirez
Stanford University Abe Lo
08/04/2020
Unrestricted Use
CC BY
Rating

In this unit, students develop ideas related to how sounds are produced, how they travel through media, and how they affect objects at a distance. Their investigations are motivated by trying to account for a perplexing anchoring phenomenon — a truck is playing loud music in a parking lot and the windows of a building across the parking lot visibly shake in response to the music.

They make observations of sound sources to revisit the K–5 idea that objects vibrate when they make sounds. They figure out that patterns of differences in those vibrations are tied to differences in characteristics of the sounds being made. They gather data on how objects vibrate when making different sounds to characterize how a vibrating object’s motion is tied to the loudness and pitch of the sounds they make. Students also conduct experiments to support the idea that sound needs matter to travel through, and they will use models and simulations to explain how sound travels through matter at the particle level.

Subject:
Physical Science
Physics
Material Type:
Activity/Lab
Assessment
Data Set
Diagram/Illustration
Lesson Plan
Simulation
Student Guide
Unit of Study
Author:
Boston College Susan Kowalski
BSCS Science Learning Gail Housman
David Wooster Middle School Sara Ryner
Ideal Elementary School Jamie Noll
North Shore Country Day School Michael Novak
Northwestern University Chris Newlan
Northwestern University Tyler Scaletta
Renee Affolter
United Junior High School Katie Van Horne
08/05/2020
Unrestricted Use
CC BY
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How do strong and weak acids differ? Use lab tools on your computer to find out! Dip the paper or the probe into solution to measure the pH, or put in the electrodes to measure the conductivity. Then see how concentration and strength affect pH. Can a weak acid solution have the same pH as a strong acid solution?

Subject:
Chemistry
Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Chris Malley
Kathy Perkins
Kelly Lancaster
Patricia Loeblein
Robert Parson
09/01/2010
Conditional Remix & Share Permitted
CC BY-NC-SA
Rating

An interactive applet and associated web page that show the concept of adjacent angles (two angles that share a common leg). The applet shows three line segments with a common endpoint. The user can move the center one and see that the angles on both sides (the adjacent angles) of it are affected. Applet can be enlarged to full screen size for use with a classroom projector. After use in the classroom, students can access it again from any web browser at home or in the library with no login required. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.

Subject:
Mathematics
Material Type:
Simulation
Author:
John Page
08/05/2020
Conditional Remix & Share Permitted
CC BY-NC-SA
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An interactive applet and associated web page that demonstrate the alternate exterior angles that are formed where a transversal crosses two lines. The applets shows the two possible pairs of angles alternating when in animation mode. By dragging the three lines, it can be seen that the angles are congruent only when the lines are parallel. When not in animated mode, there is a button that alternates the two pairs of angles. The text on the page discusses the properties of the angle pairs both in the parallel and non-parallel cases. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.

Subject:
Mathematics
Material Type:
Simulation
Author:
John Page
08/05/2020
Conditional Remix & Share Permitted
CC BY-NC-SA
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An interactive applet and associated web page that demonstrate the alternate interior angles that are formed where a transversal crosses two lines. The applets shows the two possible pairs of angles alternating when in animation mode. By dragging the three lines, it can be seen that the angles are congruent only when the lines are parallel. When not in animated mode, there is a button that alternates the two pairs of angles. The text on the page discusses the properties of the angle pairs both in the parallel and non-parallel cases. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.

Subject:
Mathematics
Material Type:
Simulation
Author:
John Page
08/05/2020
Conditional Remix & Share Permitted
CC BY-NC-SA
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Representatives from 10 sovereign Native American nations in Michigan, five State of Michigan agencies, two universities, and three private organizations collaborated to develop two short curriculum units, one for 3rd grade and one for 5th grade. Each grade level unit includes five lesson plans and support materials for teachers using information from two archaeological sites provided by MDOT and cultural, historical, environmental, and indigenous knowledge provided and vetted by Michigan Native American tribal partners participating in the project. The lesson plans use the Inquiry Arc of the College, Career, and Civic Life (C3) Framework and focus on specific Michigan Social Studies Standards. The lesson plans also provide links to Michigan English Language Arts (ELA) literacy standards, as well as science and math applications.

Subject:
Arts and Humanities
English Language Arts
Life Science
Mathematics
Social Science
Material Type:
Activity/Lab
Case Study
Diagram/Illustration
Lesson
Simulation
Unit of Study
Author:
Michigan Department of Transportation M-231 Outreach and Education Project Team
09/20/2018
Unrestricted Use
CC BY
Rating

Create your own shapes using colorful blocks and explore the relationship between perimeter and area. Compare the area and perimeter of two shapes side-by-side. Challenge yourself in the game screen to build shapes or find the area of funky figures. Try to collect lots of stars!

Subject:
Mathematics
Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Amanda McGarry
Ariel Paul
Bryce Gruneich
John Blanco
Kathy Perkins
03/20/2020
Conditional Remix & Share Permitted
CC BY-NC-SA
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An interactive applet and associated web page that demonstrate the area of a circle. A circle is shown with a point on the circumference that can be dragged to resize the circle. As the circle is resized, the radius and the area computation is shown changing in real time. The radius and formula can be hidden for class discussion. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.

Subject:
Mathematics
Material Type:
Simulation
Author:
John Page
08/05/2020
Conditional Remix & Share Permitted
CC BY-NC-SA
Rating

An interactive applet and associated web page that deals with the area of a kite, (a quadrilateral with two distinct pairs of equal adjacent sides). The applet shows a kite and the user can reshape it by dragging any vertex. The other vertices move automatically to ensure it always remains a kite. As the vertices are dragged, the area is continuously recalculated and displayed. The kite is filled with a grid of unit squares so that the students can estimate the area. The on-screen calculation can be hidden until the estimates are done. The web page lists two different ways to compute the area of a kite. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.

Subject:
Mathematics
Material Type:
Simulation
Author:
John Page
08/05/2020
Conditional Remix & Share Permitted
CC BY-NC-SA
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A web page and interactive applet showing the ways to calculate the area of a parallelogram. The user can drag the vertices of the parallelogram and the other points change automatically to ensure it remains a parallelogram. A grid inside the shape allows students to estimate the area visually, then check against the actual computed area, which is continuously recomputed and displayed. The text on the page gives three different ways to calculate the area with a formula for each. The applet uses one of the methods to compute the area in real time, so it changes as the rhombus is reshaped with the mouse. A companion page is http://www.mathopenref.com/parallelogram.html showing the definition and properties of a parallelogram Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.

Subject:
Mathematics
Material Type:
Simulation
Author:
John Page
08/05/2020
Conditional Remix & Share Permitted
CC BY-NC-SA
Rating

A web page and interactive applet showing the ways to calculate the area of a trapezoid. The user can drag the vertices of the trapezoid and the other points change automatically to ensure it remains a trapezoid. A grid inside the shape allows students to estimate the area visually, then check against the actual computed area. The text on the page gives three different ways to calculate the area with a formula for each. The applet uses one of the methods to compute the area in real time, so it changes as the trapezoid is reshaped with the mouse. A companion page is http://www.mathopenref.com/trapezoid.html showing the definition and properties of a trapezoid. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.

Subject:
Mathematics
Material Type:
Simulation
Author:
John Page
08/05/2020
Conditional Remix & Share Permitted
CC BY-NC-SA
Rating

An interactive applet and associated web page that explain the area of a triangle. The applet shows a triangle that can be reshaped by dragging any vertex. As it changes, the area is continually recalculated using the 'half base times height' method. The triangle has a fixed square grid in its interior that can be used to visually estimate the area for later correlation with the calculated value. The calculation can be hidden while estimation is in progress. The text page has links to a similar page that uses Heron's Formula to compute the area. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.

Subject:
Mathematics
Material Type:
Simulation
Author:
John Page
08/05/2020
Unrestricted Use
CC BY
Rating

Remember your multiplication tables? ... me neither. Brush up on your multiplication, division, and factoring skills with this exciting game. No calculators allowed! The students will be given mutiplication and division problems which they must answer. They also have the option of being given a number then stating the factors of how that number was attained using either multiplication or division.

Subject:
Mathematics
Numbers and Operations
Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
05/01/2006
Conditional Remix & Share Permitted
CC BY-NC-SA
Rating

We use motion detectors and a bowling ball to find relationships velocity, mass, and energy.

Subject:
Education
Material Type:
Activity/Lab
Assessment
Lesson Plan
Simulation
Author:
Derek Parendo
07/22/2020
Unrestricted Use
CC BY
Rating

How do you know if a chemical equation is balanced? What can you change to balance an equation? Play a game to test your ideas!

Subject:
Chemistry
Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Chris Malley
Emily Moore
Kathy Perkins
Kelly Lancaster
Patricia Loeblein
Robert Parson
08/15/2011
Conditional Remix & Share Permitted
CC BY-SA
Rating

The simulation shows a ballistics cart. If the cart is at rest on a horizontal surface, it will shoot a ball straight up in the air, and catch the ball again. What if, as in this simulation, the cart is traveling at a constant velocity horizontally, instead? Will the ball land ahead of the cart, in the cart, or behind the cart? Note that the cart fires the ball straight up, with respect to the cart, when the middle of the cart passes the small vertical trigger on the track.
Use the buttons to select the different modes (whether there is a tunnel or not, and whether to show the velocity vectors).

Subject:
Physics
Material Type:
Simulation
Provider:
Boston University
Author:
Andrew Duffy
08/10/2020
Unrestricted Use
CC BY
Rating

Experiment with a helium balloon, a hot air balloon, or a rigid sphere filled with different gases. Discover what makes some balloons float and others sink.

Subject:
Physics
Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Danielle Harlow
Kathy Perkins
Ron LeMaster
11/15/2007
Unrestricted Use
CC BY
Rating

Explore the origin of energy bands in crystals of atoms. The structure of these bands determines how materials conduct electricity.

Subject:
Physics
Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Chris Malley
Kathy Perkins
Sam McKagan
10/04/2006
Unrestricted Use
CC BY
Rating

Look inside a resistor to see how it works. Increase the battery voltage to make more electrons flow though the resistor. Increase the resistance to block the flow of electrons. Watch the current and resistor temperature change.

Subject:
Physics
Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Sam Reid
11/20/2008
Unrestricted Use
CC BY
Rating

Look inside a battery to see how it works. Select the battery voltage and little stick figures move charges from one end of the battery to the other. A voltmeter tells you the resulting battery voltage.

Subject:
Physics
Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Sam Reid
11/16/2007
Unrestricted Use
CC BY
Rating

The PhET project at the University of Colorado creates "fun, interactive, research-based simulations of physical phenomena." This particular one deals with Beer's Law. "The thicker the glass, the darker the brew, the less the light that passes through." Make colorful concentrated and dilute solutions and explore how much light they absorb and transmit using a virtual spectrophotometer! The simulation is also paired with a teachers' guide and related resources from PhET. The simulation is also available in multiple languages.

Subject:
Chemistry
Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Chris Malley
Emily B. Moore
Julia Chamberlain
Kathy Perkins
Kelly Lancaster
05/14/2012
Unrestricted Use
CC BY
Rating

Explore bending of light between two media with different indices of refraction. See how changing from air to water to glass changes the bending angle. Play with prisms of different shapes and make rainbows.

Subject:
Physics
Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Emily Moore
Kathy Perkins
Noah Podolefsky
Sam Reid
Trish Loeblein
05/09/2011
Unrestricted Use
CC BY
Rating

When will objects float and when will they sink? Learn how buoyancy works with blocks. Arrows show the applied forces, and you can modify the properties of the blocks and the fluid.

Subject:
Physics
Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Archie Paulson
Carl Wieman
Chris Malley
Jonathan Olson
Kathy Perkins
Kelly Lancaster
Noah Podolefsky
Sam Reid
Trish Loeblein
09/30/2010
Unrestricted Use
CC BY
Rating

A simulation that shows the rate and scope of spread of COVID-19 in a community. Students can change variables such as number of people, number of vaccinated people, workplace policies, school policies, etc.

Subject:
Life Science
Biology
Material Type:
Simulation
Author:
OpenSciEd
04/29/2021
Unrestricted Use
CC BY
Rating

A simulation that shows the rate and scope of spread of COVID-19 in a community. Students can change variables such as number of people, schooling plans, etc. A more advanced version of this simulation can be found at https://openscied-static.s3.amazonaws.com/HTML+Files/COVID-19+Vaccination.html

Subject:
Life Science
Biology
Material Type:
Simulation
Author:
OpenSciEd
04/29/2021
Unrestricted Use
CC BY
Rating

Explore how a capacitor works! Change the size of the plates and add a dielectric to see how it affects capacitance. Change the voltage and see charges built up on the plates. Shows the electric field in the capacitor. Measure voltage and electric field.

Subject:
Physics
Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Chris Malley
Kathy Perkins
Mike Dubson
Noah Podolefsky
03/20/2020
Unrestricted Use
CC BY
Rating

Move point charges around on the playing field and then view the electric field, voltages, equipotential lines, and more. It's colorful, it's dynamic, it's free.

Subject:
Physics
Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Michael Dubson
11/20/2008
Unrestricted Use
CC BY
Rating

This simulation shows the relationship between the inputs and outputs in the chloroplasts of plants to help explain how they convert water and carbon dioxide to glucose and water with the help of energy absorbed from light. It is used in Lesson 5 of Unit 7.4 in the OpenSciEd curriculum.

Subject:
Life Science
Biology
Botany
Material Type:
Simulation
Author:
OpenSciEd
05/26/2021
Unrestricted Use
CC BY
Rating

This new version of the CCK adds capacitors, inductors and AC voltage sources to your toolbox! Now you can graph the current and voltage as a function of time.

Subject:
Electronic Technology
Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Kathy Perkins
Michael Dubson
Sam Reid
07/12/2008
Unrestricted Use
CC BY
Rating

Build circuits with capacitors, inductors, resistors and AC or DC voltage sources, and inspect them using lab instruments such as voltmeters and ammeters.

Subject:
Electronic Technology
Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Kathy Perkins
Michael Dubson
Sam Reid
07/01/2006
Unrestricted Use
CC BY
Rating

Build circuits with resistors, light bulbs, batteries, and switches and take measurements with laboratory equipment like the realistic ammeter and voltmeter.

Subject:
Electronic Technology
Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Kathy Perkins
Michael Dubson
Sam Reid
07/01/2004
Conditional Remix & Share Permitted
CC BY-NC-SA
Rating

An interactive applet and associated web page that demonstrate the circumference of a circle. The applet shows a circle with a radius line. The radius endpoints are draggable and the circle is resized accordingly. The formula relating radius to circumference is updated continually as you drag. Introduces the idea of Pi. The formula can be hidden for class discussion and estimation. See also the entries for circumference and diameter. See also entries for radius and diameter. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.

Subject:
Mathematics
Material Type:
Simulation
Author:
John Page
08/05/2020
Unrestricted Use
CC BY
Rating

Investigate collisions on an air hockey table. Set up your own experiments: vary the number of discs, masses and initial conditions. Is momentum conserved? Is kinetic energy conserved? Vary the elasticity and see what happens.

Subject:
Physics
Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Ariel Paul
Jon Olson
Kathy Perkins
Mike Dubson
Mindy Gratny
Sam Reid
Trish Loeblein
10/01/2010
Unrestricted Use
CC BY
Rating

A simulation to model Newton's Laws through the collision of a cart and a box.

Subject:
Physics
Material Type:
Simulation
Author:
OpenSciEd
04/26/2021
Unrestricted Use
CC BY
Rating

Make a whole rainbow by mixing red, green, and blue light. Change the wavelength of a monochromatic beam or filter white light. View the light as a solid beam, or see the individual photons.

Subject:
Physics
Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Chris Malley
Danielle Harlow
Kathy Perkins
Ron LeMaster
10/30/2006
Conditional Remix & Share Permitted
CC BY-NC-SA
Rating

An interactive applet and associated web page that demonstrate the concept of complementary angles (angles that add to 90 degrees). The applet shows two angles. You can drag the endpoints of each angle and the other angle changes so that they always add to 90 degrees. They are drawn in such a way that it is visually obvious that together they form a right angle, although they are separate on the page. The angle measure readouts can be turned off for class discussions. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.

Subject:
Mathematics
Material Type: