An interactive applet and associated web page that demonstrate supplementary angles (two angles that add to 180 degrees.) The applet shows two angles which, while not adjacent, are drawn to strongly suggest visually that they add to a straight angle. Any point defining the angle scan be dragged, and as you do so, the other angle changes to remain supplementary to the one you change. 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.

Americans are passionate about their constitution. Canadians aren’t. Supreme Law is here to change that.

Made in partnership with the Centre for Constitutional Studies and directed by two-time Emmy winner Katerina Cizek, this interactive "choose your own adventure" documentary brings together Canadian YouTube stars, constitutional scholars, historic video clips, and meticulously researched background on one of the most important and dramatic political events in Canada of the 20th century.

And it’s all wrapped in a brilliantly retro visual aesthetic with a soundtrack of tunes that rocked the country during the ’80s. This is an entertaining and rich resource for anyone who wants to understand the stories behind the Canadian Constitution and how they continue to resonate today.

Students will speak knowledgeably about the current state of biodiversity on Earth, creativity represent their learning through a variety of activities and effectively inform and inspire their peers about the importance of protecting our environment.

How do our everyday actions contribute to our ecological footprint? Can we change our individual actions to be more environmentally friendly and create a more sustainable lifestyle? In this lesson, students will evaluate their own environmental impact using an online tool called Your Plan, Your Planet, and evaluate simple ways to reduce their ecological footprint as an individual or community.

An interactive applet and associated web page that demonstrate a tangent to a circle. (not trig). The applet shows a circle and a tangent line. The center point and the tangent contact point are both draggable. As you drag each, the figure changes to ensure that the line is always tangential to the circle. The line from the center to the tangent point is shown and the angle is shown to be always 90 degrees no matter what you do. The perpendicular and its angle can be turned off 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.

An interactive applet and associated web page that demonstrate the tangent to an ellipse. An ellipse is shown and a tangent line that touches it at the one point. The user can drag the tangent point around the ellipse and the tangent follows. The ellipse can be reshaped by dragging the foci. The applet shows the fact that the two lines from the foci to the tangent meet it at equal angles. The web page has the written properties of the tangent and links to other pages defining the various properties of an ellipse and to some ellipse constructions. 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.

This is a journal article and activity/demonstration about navigation in space. Learners will learn about gyroscopes by playing with a spinning bicycle wheel to demonstrate momentum, centripal force and angular momentum. First the spinning wheel is held perpendicular to the ground, then parallel to the ground, then it is hung from a string, and finally the wheel is held in the center by at its axle points while the person is on a swivel stool. The results are explained, specific vocabulary is introduced, and questions are presented. The article was originally published in The Technology Teacher, by the International Technology Education Association.

This article describes an indoor, game-type demonstration, incorporating physics (EM wave modulation), math (binary codes), space technology, and music to show how spacecraft put information into the radio signals they send back to Earth. The article was originally written for and published by the International Technology Education Association in its journal, The Technology Teacher. It is now archived on The Space Place Web site.

This manual provides an overview of how telescopes have changed our understanding of the universe and contains simple demonstrations to use at star parties to get across basic ideas of optics. This manual will also help explain why the images that folks see at the eyepiece of a telescope at an outreach star party is so different from images published in magazines. The manual was produced to accompany an outreach toolkit developed for the NASA Night Sky Network. The toolkit is no longer being manufactured, but the activities are available through the manual, which can be freely downloaded.

Une série de simulations provenant de l’Université de Colorado à Boulder pour les 9e – 12e au sujet des sciences. Cette simulation démontre le processus de la tension de la pile.

Regardez à l'intérieur d'une pile pour comprendre son fonctionnement. Sélectionnez la tension de la pile et de petites figurines déplacent des charges d'une extrémité de la pile à l'autre. Un voltmètre vous indique la tension de la pile résultante.

A web page and interactive applet illustrating the properties of a tetragon (4 sided polygon). The applet shows a tetragon where the user can drag any vertex to reshape the polygon. User can see that the interior and exterior angles are constant in a regular tetragon, but vary in an irregular version. Controls allow the display or hiding of the diagonals, and triangles within the tetragon. The web page lists the properties of a tetragon including interior angles, exterior angles, sum of exterior angles, area, number of diagonals and number of internal triangles. Links to pages with generalized properties of all polygons. 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.

A web page and interactive applet illustrating Thales Theorem (the diameter of a circle always subtends a right angle to any point on the circumference). The applet shows a circle where the user can rotate the diameter and a move a point on the circumference. The applet continuously shows the resulting right triangle, demonstrating that the theorem holds no matter how the points are moved around. Text on the page defines the theorem and relates it to other geometric entities. 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.

In this experiment, students create a "lava lamp" - a beaker on a hotplate, and investigate buoyancy, convection and other fluid and thermodynamic properties using ink, water, vegetable oil and Alka-Seltzer tablets. The activity is from PUMAS - Practical Uses of Math and Science - a collection of brief examples created by scientists and engineers showing how math and science topics taught in K-12 classes have real world applications.

Investigate how torque causes an object to rotate. Discover the relationships between angular acceleration, moment of inertia, angular momentum and torque.

This activity explores the role of the buffalo in the lives of the American Indians of the northern Plains. For centuries, the American bison--commonly called the buffalo--has been revered by various Native American peoples. The buffalo still plays a central role in many American Indian cultures. Stories passed from generation to generation--by spoken word and by pictures painted on animal hides--record the history of American Indians and the buffalo.

Website sections include:
- You be the historian
- What can you make from a buffalo?
- Background Information
More about the buffalo hide painting
Meet the artist
Map of the Plains Indians
- Classroom Materials
Make your own buffalo hide painting
Student worksheet
Teacher guide

An excellent resource from the Eastern Ontario Catholic Curriculum Cooperative. This resource includes an in-depth simulation to place students into the “shoes” of those living in poverty. “This unit will help engage students to actively explore international trade, development and co-operation issues as they pertain to Canada, its trading partners, and the fair trade system.”

In this simulation, users will practice transforming bacterial cells with a recombinant plasmid using the heat shock method.

An interactive applet and associated web page that demonstrate the transversal, a line that crosses two other (usually parallel) lines. The applet shows two lines that are initially parallel, and a transversal line. All eight angles thus formed are shown. As you drag the transversal end points, you can see that the angles form congruent, supplementary and complementary sets. If you move one of the parallel lines to make it non-parallel, you can see that these angles lose some of their relationship with each other. 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.

A web page and interactive applet showing the definition and properties of a trapezoid. The applet shows a trapezoid where the user can drag any vertex. The other points then move in such a way that the figure remains a trapezoid at all times. A control to hide the details allows a classroom discussion where students can try to infer what the properties are as it is reshaped by the discussion leader. Text on the page has the formal definition and properties of the trapezoid with links to related pages. A companion page is http://www.mathopenref.com/trapezoidarea.html showing the ways to calculate the area 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.

An interactive applet and associated web page that show the definition and properties of a trapezoid in coordinate geometry. The applet has a trapezoid with draggable vertices. As the user re-sizes the trapezoid the applet continuously recalculates its altitude and median from the vertex coordinates. The trapezoid can be rotated on the plane to show the more complex cases. The grid, coordinates and calculations can be turned on and off for class problem solving. The applet can be printed in the state it appears on the screen to make handouts. The web page has a full definition of a trapezoid when the coordinates of the points defining it are known, and has links to other pages relating to coordinate geometry. 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.