[Free Registration/Login may be required to access all resource tools.] Learn how to express angles of rotation.

This site gives a definition of angle of rotation and provides some examples. There is also an interactive activity in which a JavaSketchPad page is provided for you to explore rotations. In addition, be sure to follow the links to...

[Free Registration/Login may be required to access all resource tools.] Describing trig functions as relationships on the unit circle.

[Free Registration/Login may be required to access all resource tools.] Find a figure's angle of rotation.

[Free Registration/Login may be required to access all resource tools.] This concept teaches students what rotations are and how to find the coordinates of rotated figures.

[Free Registration/Login may be required to access all resource tools.] This concept teaches students how to determine whether or not a shape has rotation symmetry.

Use this applet to choose a shape to rotate around the origin. This could be used to demonstrate what a rotation is, or students could use it to guess what a certain degree rotation will look like.

Join the ladybug in an exploration of rotational motion. Rotate the merry-go-round to change its angle, or choose a constant angular velocity or angular acceleration. Explore how circular motion relates to the bug's x,y position,...

This investigation uses Cabri Jr. and a cleaver rotation of a triangle to "prove" that the angles in a triangle add up to 180. This could be used to reinforce triangles and paralled lines as well as introduce the concept of rotating an...

In the following interactive students will begin to define arc length, rotation angle, radius of curvature and angular velocity. They will also calculate the angular velocity of a car wheel spin.

Definitions of different types of angles along with images and an interactive tool through which you can create acute, right, straight, obtuse, and reflex angles. View the parts of an angle, and learn the proper way to label angles.

Given a figure on the coordinate plane and a center of a rotation, find the angle for the rotation that maps one figure to the other. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a...

Students discover properties of rotations using the TI-89 and CABRI Geometry II by rotating a triangle around a point and through a specified angle. They will discover the definition of a rotation. [Requires Adobe Reader.]

Given a description of a sequence of transformations, determine whether it preserves segment length or angle measure.

Students learn various topics associated with the circle through studying a clock. Topics include reading analog time, understanding the concept of rotation (clockwise vs. counter-clockwise), and identifying right angles and straight...

Collection of images of bones in the human skeleton, captured with QuickTime VR, can be rotated and viewed from different angles.

A brief explanation of the Earth's rotation around the Sun and how it relates to the amount of sunlight the Earth receives, and to the seasons. Includes two questions for students to respond to.

In this lesson, students observe symmetry, geometric shapes, and angles in two Early American dances, and then choreograph their own dance with symmetrical figures. Media and teaching materials are included.

This season simulator takes Earth through an entire year cycle allowing the viewer to observe the tilt of the Earth and the intensity of the sunlight.

A NASA space scientist provides 98 questions and answers about the sun, the center of our solar system.

This is an overview of the lesson: Students are going to derive a powerful formula which will calculate where any point (x,y) (x, y) (x,y)left parenthesis, x, comma, y, right parenthesis goes afterrotation by an angle theta theta about...

The earth has some unusual properties that make its' weather suitable for life. This activity allows you to change four properties (earth's size, rotation speed, angle of the sun, and ocean size) to see what effects they would have on...

This lesson was designed for our Grandparents and Special Friends day. It can be used for any visitation day, or an open house. The lesson is designed to review percent of a whole and the sector of the circle representing the percentage....