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

The division of triangles into scalene, isosceles, and equilateral can be thought of in terms of lines of symmetry. Aligns with 4.G.A.3.

Second graders use a variety of measurement tools to measure both small and larger distances.

An applet is used to explore the rotation symmetry of geometric shapes. [Requires Java.]

An applet is used to investigate the rotation symmetry of regular polygons.

An introduction to the various types of symmetries that can occur in the graphs of functions. Uses vertical, horizontal, and oblique reflections as a means of recognizing symmetries.

Identify the lines of symmetry of the given shape.

Test your knowledge of rotational symmetry.

Eighteen problems offer practice working with circular functions, periodicity and symmetry. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View...

This tool allows you to see a face with perfect symmetry. You can upload photos and it creates a symmetrical image. A great activity to do with students, and great for a bulletin board display. [Requires Java.]

This tool allows you to see a face with perfect symmetry. You can upload photos and it creates a symmetrical image. A great activity to do with students, and great for a bulletin board display.

Investigate tessellations using this interactive Learn Alberta math resource. Students will explore transformations, namely line symmetry, rotation symmetry, and translation occurring within a tessellated pattern. Be sure to follow the...

In this video segment [3:25] from Cyberchase, a plant expert shows Bianca the patterns and symmetry found in nature.

In the following interactive students will begin to understand Newton's third law of motion and also apply it to define systems and solve problems of motion.

Suppose ABCD is a quadrilateral for which there is exactly one rotation, through an angle larger than 0 degrees and less than 360 degrees, which maps it to itself. Further, no reflections map ABCD to itself. What shape is ABCD? Aligns...

There is exactly one reflection and no rotation that sends the convex quadrilateral ABCD onto itself. What shape(s) could quadrilateral ABCD be? Explain. Aligns with G-CO.A.3.

This task examines the rigid motions which map a rectangle onto itself. The emphasis here is on careful reasoning using the definitions of reflections and rotations. Aligns with G-CO.A.3.

Get independent practice working with scientific and standard notation. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.

This activity has instructions for making symmetrical portraits of the human face using a digital photograph. It's an activity students of all ages would enjoy.

In this tea store, the boxes all have different shapes! What do you know about shapes?

Based off of the hit television show NUMB3RS, this lesson has students examine a set of transformations to determine if certain properties (such as associativity and closure) exist for equilateral triangles. Students create tables of...

A geometry instructional activity where students read about tilings and tessellations, answer some questions, then explore them using an online interactive. Afterwards, they share and apply their learning in discussion and by examining...

Meet Morisu in the dojo. Help him with symmetrical objects and shapes!

By the end of this section, you will be able to understand Newton's third law of motion and apply Newton's third law to define systems and solve problems of motion.