In this activity, students can create a polygon by defining its vertices on the Cartesian coordinate plane then translate, reflect, or rotate the figure as they please. This activity allows students to practice transforming more complex polygons than in Transmographer because they have the ability to adjust the coordinates of the vertices of the polygon. This activity includes supplemental materials, including background information about the topics covered, a description of how to use the application, and exploration questions for use with the java applet.


  • Mathematics > General

Education Levels:

  • Grade 1
  • Grade 3
  • Grade 4
  • Grade 5
  • Grade 6
  • Grade 7
  • Grade 8
  • Grade 9
  • Grade 10
  • Grade 11
  • Grade 12


Informal Education,Grade 3,Grade 9,Middle School,NSDL,Upper Elementary,Grade 5,Grade 4,oai:nsdl.org:2200/20120727185108250T,High School,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-016,Elementary School,Grade 10,Grade 11,Grade 12,Mathematics,Vocational/Professional Development Education,Grade 8



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Public - Available to anyone

License Deed:

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Update Standards?

CCSS.Math.Content.8.G.A.2: Common Core State Standards for Mathematics

Understand that a two-dimensional figure is congruent to another if the second can be obtained from the first by a sequence of rotations, reflections, and translations; given two congruent figures, describe a sequence that exhibits the congruence between them.

CCSS.Math.Content.8.G.A.3: Common Core State Standards for Mathematics

Describe the effect of dilations, translations, rotations, and reflections on two-dimensional figures using coordinates.

CCSS.Math.Content.HSG-CO.A.2: Common Core State Standards for Mathematics

Represent transformations in the plane using, e.g., transparencies and geometry software; describe transformations as functions that take points in the plane as inputs and give other points as outputs. Compare transformations that preserve distance and angle to those that do not (e.g., translation versus horizontal stretch).

CCSS.Math.Content.HSG-CO.B.6: Common Core State Standards for Mathematics

Use geometric descriptions of rigid motions to transform figures and to predict the effect of a given rigid motion on a given figure; given two figures, use the definition of congruence in terms of rigid motions to decide if they are congruent.
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