Rice University
Rice University: Cynthia Lanius: Dueling Pinwheels (Geometer's Sketchpad)
An introductory look at the interactive Geometer's Sketchpad in terms of using it to explore rotations, translations, and reflections. Only a beginner's amount of skill with the program is needed. Exploration questions are given for the...
Texas Instruments
Texas Instruments: Numb3 Rs: A Group of Symmetries
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...
Texas Instruments
Texas Instruments: Working With Point Rotations in the Coordinate Plane
Using Cabri Jr. and the properties of rotations to get a true understanding of how a figure is rotated about a point.
Texas Instruments
Texas Instruments: What's the Spin?
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.]
Texas Instruments
Texas Instruments: Geoboard App
Students use the Geoboard App to measure arcs, line segments, area, and perimeter, as well as rotate, reflect, and translate objects.
Texas Instruments
Texas Instruments: Traveling Shapes Motion Geometry
In this activity, students describe how to move a shape from one place to another in a plane. They learn about translations, rotations, and line reflections. [Requires Adobe Reader.]
Texas Instruments
Texas Instruments: Rotations in the Coordinate Plane
It is important for students to know what happens to the coordinates of points when they are rotated in the coordinate plane by 90 or 180 degrees, either clockwise or counterclockwise. This activity enables students to use Cabri Jr. to...
Texas Instruments
Texas Instruments: Rotations in the Plane With Cabri Jr.
A rotation is a transformation that turns a figure a certain number of degrees about a certain point. This activity explores the properties of rotations and the relationships between the original and image figures.
Texas Instruments
Texas Instruments: House
Students use the Cabri Geometry II Plus software to invert, rotate and dilate a figure.
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Lab Activity: Tops
The Illinois Institute of Technology provides a lab activity on precession and spinning tops. Designed for primary grades, but easily adapted for any level. Includes directions and assessment ideas.
Math Slice
Math Slice: Geometry Slice Special Test
A succinct test for assessing geometry concepts. Assessment is scored online giving immediate feedback. An excellent assessment tool.
Beacon Learning Center
Beacon Learning Center: Wrapping Paper Patterns
Students explore slides, flips, and turns in this interactive web lesson.
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: Traslaciones, Simetrias Y Giros
In Spanish. In this unit you can learn about movements in the plane: translations, symmetry and rotation.
TED Talks
Ted: Ted Ed: What if the Earth Stopped Spinning?
Michael Stevens of Vsauce looks at what would happen if the Earth stopped spinning. He also explores how we construct time as a function of the Earth's rotation and why atomic clocks are so precise. [9:44]
TED Talks
Ted: Ted Ed: What on Earth Is Spin?
Why is the spinning motion so special? Brian Jones details the dizzyingly wide array of ways that spinning affects our lives. [3:57]
Exploratorium
Exploratorium: Bicycle Wheel Gyro
Description of a museum exhibit in which the spinning bicycle wheel induces the rotation of a student in a rotating chair. Excellent demonstration idea.
Exploratorium
Exploratorium: Gyroscope
Description of a museum exhibit in which the forces exerted by two gyroscope wheels are analyzed. Excellent demonstration idea.
Other
Glenn Turner: Gyroscope Math Page
The mathematics associated with gyroscopes can be investigated through this interactive page. Users enter critical parameters about gyroscopes and rotational motion descriptors are given.
Clark University
Clark University: Dave's Short Trig Course: Transformations of the Plane
Site that focuses on planar pattern and transformations within geometry. It also identifies different kinds of symmetry.
Other
Symmetry in Architecture
Provides real world examples of symmetry in architecture, including pictures of each kind of symmetry, examples, acknowledgements, and a bibliography.
McGraw Hill
Glencoe Mathematics: Online Study Tools: Rotations
This site gives a short interactive quiz which allows students to self-assess their understanding of the concept of rotation.
Sophia Learning
Sophia: Rotating on a Coordinate Plane: Lesson 3
This lesson demonstrates how an object can be rotated in space and on a coordinate plane about different points. It is 3 of 5 in the series titled "Rotating On a Coordinate Plane."
Exploratorium
Exploratorium: Science Snacks: Bicycle Wheel Gyro
Did you know that by holding a spinning bicycle wheel you can make a rotating chair spin? This activity will have you spinning as you use a bicycle wheel as a gyroscope.