Grade 8 Mathematics Module 2

Student writing

Grade 8 Module 2: The Concept of Congruence

In this module, students learn about translations, reflections, and rotations in the plane and, more importantly, how to use them to precisely define the concept of congruence. Throughout Topic A, on the definitions and properties of the basic rigid motions, students verify experimentally their basic properties and, when feasible, deepen their understanding of these properties using reasoning. All the lessons of Topic B demonstrate to students the ability to sequence various combinations of rigid motions while maintaining the basic properties of individual rigid motions. Students learn that congruence is just a sequence of basic rigid motions in Topic C, and Topic D begins the learning of Pythagorean Theorem.

The student materials consist of the student pages for each lesson in Module 2.

The copy ready materials are a collection of the module assessments, lesson exit tickets and fluency exercises from the teacher materials.

Downloadable Resources

Resources may contain links to sites external to the EngageNY.org website. These sites may not be within the jurisdiction of NYSED and in such cases NYSED is not responsible for its content.

Grade 8 Mathematics Module 2: Full Module - Teacher Materials (10.13 MB)
Grade 8 Mathematics Module 2: Full Module - Student Materials (3.58 MB)
Grade 8 Mathematics Module 2: Full Module - Copy Ready Materials (3.74 MB)
Grade 8 Mathematics Module 2: Module Overview (587.53 KB)
Grade 8 Mathematics Module 2: Module Overview (293.62 KB)
Grade 8 Mathematics Module 2: Mid-Module Assessment (1.56 MB)
Grade 8 Mathematics Module 2: Mid-Module Assessment (1.76 MB)
Grade 8 Mathematics Module 2: End-of-Module Assessment (973.51 KB)
Grade 8 Mathematics Module 2: End-of-Module Assessment (1.18 MB)
Grade 8 Mathematics Module 2: Topic Overviews - Zip File of Individual Documents (2.05 MB)
Grade 8 Mathematics Module 2: Teacher Materials - Zip File of Individual Documents (17.72 MB)
Grade 8 Mathematics Module 2: Student Materials - Zip File of Individual Documents (12.5 MB)
Grade 8 Mathematics Module 2: Arabic - Zip file of PDF documents (4.66 MB)
Grade 8 Mathematics Module 2: Arabic - Zip file of Word documents (4.3 MB)
Grade 8 Mathematics Module 2: Bengali - Zip file of PDF documents (4.38 MB)
Grade 8 Mathematics Module 2: Bengali - Zip file of Word documents (4.35 MB)
Grade 8 Mathematics Module 2: Simplified Chinese - Zip Folder of PDF Files (4.77 MB)
Grade 8 Mathematics Module 2: Simplified Chinese - Zip Folder of Word Documents (4.27 MB)
Grade 8 Mathematics Module 2: Spanish - Zip Folder of PDF Files (4.59 MB)
Grade 8 Mathematics Module 2: Spanish - Zip Folder of Word Documents (6.32 MB)
Grade 8 Mathematics Module 2: Traditional Chinese - Zip Folder of PDF Files (4.58 MB)
Grade 8 Mathematics Module 2: Traditional Chinese - Zip Folder of Word Documents (4.27 MB)

Common Core Learning Standards

CCLS State Standard
8.G.1 Verify experimentally the properties of rotations, reflections, and translations:
8.G.2 Understand that a two-dimensional figure is congruent to another if the second can be obtained from...
8.G.5 Use informal arguments to establish facts about the angle sum and exterior angle of triangles,...

Curriculum Map