This task shows that the three perpendicular bisectors of the sides of a triangle all meet in a point, using the characterization of the perpendicular bisector of a line segment as the set of points equidistant from the two ends of the segment. The point so constructed is called the circumcenter of the triangle.

This task shows that the three perpendicular bisectors of the sides of a triangle all meet in a point, using the characterization of the perpendicular bisector of a line segment as the set of points equidistant from the two ends of the segment.

The goal of this task is to study where a circumscribed triangle can meet a given circle.

This is a 30-minute lesson plan designed to help upper-elementary grade students understand the importance of citing their online sources and how to do it when completing a research project.

The Big6 is a six-stage model to help anyone solve problems or make decisions by using information. Students can use this model to guide them through the research process. The Super3 is a simplified version of the model for younger students. This article shared ideas for helping younger students learn citation and crediting skills.

This website has both an article and podcast voiceover explaining how citizens of Utah stopped the MX Missile system from being stored in Utah during the height of the Cold War and nuclear testing.

Learn about what it takes to become a citizen of the United States of America.

This is a nearpod that covers elements and charataristics of good citizenship.  It has acitivities that push students to think deeper about citizenship and what they already know about it.  It challenges students to become better citizens.  This is also an editable link from Nearpod so you can alter as needed.  

This is a Nearpod that covers elements and characteristics of good citizenship. It has activities that push students to think deeper about citizenship and what they already know about it. It challenges students to become better citizens. This is also an editable link from Nearpod so you can alter as needed.

Students will learn what it means to be a U.S. citizen and how citizenship is obtained. They will compare and contrast personal and political rights with social responsibilities and personal duties. Students will explore global citizenship, and the rights and responsibilities of citizens in other countries. They will also learn about community engagement by selecting a problem of their own and creating a plan to solve it.

In this lesson students will examine the concept of "citizen" from a definitional perspective of what a citizen is and from the perspective of how citizenship is conferred in the United States. Students will discuss the rights and responsibilities of citizens and non-citizens and review the changing history of citizenship from colonial times to the present.

What can we make of the massive amount of crime statistics collected in major cities? Beyond just reporting numbers, how can we use these data to determine the safeness of a city?

Mission US is a role-playing game (RPG). In each mission you’ll step into the shoes of a young person during an important time period in US history. While your character and many of the characters in the game are fictional, they are based on the experiences of real people. (You will also encounter some actual historical figures and witness historical events in the game!) In this simularion, it’s 1907. You are Lena Brodsky, a 14-year-old Jewish immigrant from Russia. How will you start a new life in America?

This problem is an investigation into combinations of a number of cubes. It is a practical activity which involves working systematically, and visualizing and relating 3D shapes to their representation on paper. Children are asked how many different towers are possible using seven cubes on a base of two of them. The Teachers' Notes page includes suggestions for implementation, discussion questions, ideas for extension and support, and printable handouts (word/pdf).

For many students, a trip to Washington, D.C. is a once-in-a-lifetime experience that opens their eyes to an exciting world beyond their classrooms. Discovery Education and First Lady Dr. Jill Biden welcome students to a behind-the-scenes Virtual Field Trip to experience the history and beauty of our nation’s capital.

Designed for students in grades 4-8, this action-packed tour features remarkable special guests and give viewers an inside look at six landmark locations:

The White House
The U.S. Capitol Building
The Supreme Court
The Martin Luther King, Jr. Memorial
Arlington National Cemetery and the Tomb of the Unknown Soldier
The Smithsonian National Air and Space Museum

The purpose of this lesson is to engage students in a discussion of the Constitutional Convention.Students will explore the key disputes that arose during the convention, including most prominently how power would be divided between the federal and state governments and the various branches of government. Furthermore, students with understand the importance of compromise during the Constitutional Convention. They will then apply these observations to other historical examples of debate and compromise to understand the nature of decision-making and civic discourse--discussion rooted in mutual respect for differences and desires for understanding--in the United States.