# Geometry - 4th Edition

## Chapter 4: Transformational Geometry

Some links are repeated for use with more than one lesson.

Please report broken links to Kathy Kral

### These sites apply to the entire chapter.

http://www.regentsprep.org/Regents/math/geometry/GT5/indexGT5.htm
NEW This page provides several links for reviewing the different coordinate transformations studied in this chapter.

http://www.regentsprep.org/Regents/math/geometry/MultipleChoiceReviewG/Transformations.htm
NEW This page provides a comprehensive practice test on the many geometric transformations studied in this chapter.

### 4.1 Reflections

http://www.mathsisfun.com/geometry/reflection.html
This page contains notes and an interactive coordinate plane to let students practice reflections.

http://regentsprep.org/regents/math/geometry/GT1/indexGT1.htm
NEW This page provides several links to discussions and practice for reflections about lines and points.

### 4.2 Translations

http://www.freemathhelp.com/Lessons/Algebra_2_Translating_Graphs_BB.htm
This site contains a video tutorial with notes on translating graphs.

http://www.mathsisfun.com/geometry/translation.html
This page contains notes and an interactive coordinate plane to let students practice translations.

### 4.3 Rotations

http://www.mathsisfun.com/geometry/rotation.html
This site has an explanation and an interactive coordinate plane to let students practice rotations.

http://regentsprep.org/regents/math/geometry/GT4/indexGT4.htm
NEW This page provides several links to discussions and practice for rotations.

### 4.4 Compositions

http://www.regentsprep.org/Regents/math/geometry/GT6/indexGT6.htm
NEW This page provides several links to discussions and practice for compositions of transformations.

### 4.5 Isometries as Functions

http://www.regentsprep.org/Regents/math/geometry/GT5/reviewtranformations.htm
NEW This page provides a comprehensive review of the coordinate transformations.

### 4.6 Tessellations

http://mathforum.org/sum95/suzanne/whattess.html
This page defines tessellations and shows some examples.

http://www.coolmath.com/lesson-tessellations-1.htm
NEW This site explains tessellations and has examples

### 4.7 Stretches and Dilations

http://nlvm.usu.edu/en/nav/frames_asid_295_g_3_t_3.html?open=activities
This site gives examples of dilations, and has practice problems for the students. This website requires Java to run some of its features.

http://regentsprep.org/regents/math/geometry/GT3/indexGT3.htm
NEW This page provides several links to discussions and practice for dilations.