Young scholars think about what causes the seasons to change, reflect on what they know about seasons and how their lives affected by seasonal changes.

[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...

This interactive exercise looks at angles of rotation and rotational symmetry of a variety of figures.

[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,...

In this science fair project, use a globe and a heat lamp to investigate how the angle of the Sun affects global warming. This project includes the objective, background questions, a list of all the materials you'll need, and the...

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...

Eighth graders are presented with a labeled drawing of two parallel lines intersected by a transversal line. They are asked to discuss congruency of angles when the picture is rotated about a point on the transversal. Aligns with 8.G.A.5.

This fun activity helps you to understand the movement of the sun by studying shadows.

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.

By the end of this section, you will be able to define arc length, rotation angle, radius of curvature, and angular velocity; and to 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.

This task uses GeoGebra software, which can be freely downloaded, to explore what happens to the line segments and angles of a triangle when it is reflected, rotated, and translated. Includes printable task sheet for students and a...

The goal of this task is to encourage students to be precise in their use of language when making mathematical definitions. After working on this problem, they are asked to give a proper definition of a rotation by an angle about a...

Find out about the ways to name rotation symmetry: order, fraction of a turn, and angle.

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.

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.