A triangle rests in quadrant two, from which your class members must draw reflections, both over x=2 and x=-2. This focused exercise strengthens students' skills when it comes to reflection on the coordinate plane.

Very simply, geometers examine a pair of rectangles on graph paper and find a translation and rotation to demonstrate their congruence. A couple of questions follow to stimulate critical thinking about other possibilities.

Even the most inspiring documents in American history had to go through a few drafts before they were ready for publication. Reinforce the importance of the writing process, as well as the collaborative nature of democracy, with an...

Two triangles are displayed on a coordinate plane. Youngsters apply a reflection and a translation to demonstrate their congruence. This exercise makes a terrific tool for teaching these concepts, or a way to assess learning.

Young mathematicians investigate the use of symmetry in graphic design. After first learning about reflection, translational, and rotational symmetry, children use this new knowledge to identify symmetry in letters of the...

While it may seem incredibly obvious to the geometry student that congruent sides make congruent triangles, the proving of this by definition actually takes a bit of work. This exercise steps the class through this kind of proof by...

Geometers prove that triangle PQR is congruent to triangle ABC by describing any combination of rotations, reflections, and translations that would prove it so. There is only this single task on the handout, but a detailed explanation of...

Abraham Lincoln's Gettysburg Address provides the text for a series of close reading exercises that model for instructors how carefully crafted guiding questions can help readers think critically about what they read, thus developing...

Riddle me this! What do kennings, caesura, and alliteration have to do with the Nowell Codex? Introduce class members to Anglo-Saxon poetry and prepare readers for a study of Beowulf with a series of activities that...

Proving triangles are similar is often an exercise in applying one of the many theorems young geometers memorize, like the AA similarity criteria. But proving that the criteria themselves are valid from basic principles is a great...

Readers respond to a series of questions focused onJuliet Marillier's young adult novel Wildwood Dancing, and crafted to reflect the levels in Bloom's Taxonomy.

Translate the first speaking and listening standard for yourself and your ninth and tenth graders! Learners can focus on communicating in small groups with the two activities presented here. Both activities center around group creation...

Students will discover how to move a function up, down, to the right or left or reflect it.

In this activity, students will investigate the relationship among the three types of rigid transformations - translations, rotations, and reflections.

Students will be in groups and plot given points. From the given points the students will plot the appropriate reflection or translation.

Students use the Geoboard App to measure arcs, line segments, area, and perimeter, as well as rotate, reflect, and translate objects.

This site presents information on the three basic transformations of figures in a plane: Reflections, Rotations, and Translations.

Explore transformations of a polygon that include: 1) translation 2) rotation 3) reflection and 4) dilation.

This Math Forum site gives visual examples of rotation, translation, reflection, and glide reflection with background information about each. Also gives problems to work on concerning symmetry.

Find a quick, concise explanation of the transformations of graphs: translations, reflections and rotations. Examples are given and clearly explained for each transformation.

This site from the Richland Community College provides the detailed lecture notes to a college algebra course, complete with equations and definitions. Content ranges from "functions and their graphs" to "conics and parametric equations."

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.]

Students explore slides, flips, and turns in this interactive web lesson.

Choose a transformation and apply it to a shape to observe the resulting image.