# Texas Geometry Samples

In this course, students will build understanding of the following modules: Reasoning with Shapes, Establishing Congruence, Investigating Proportionality, Connecting Geometric and Algebraic Descriptions, and Making Informed Decisions.

Each module is broken up into topics where you will find teacher materials to guide the instruction and the student materials both used in the classroom for learning together and corresponding MATHia workspaces for learning individually.

### Geometry Topic & Lesson Samples

Textbooks & PDF Printables

Module 1: Reasoning with Shapes
General
Topic 1: Using a Rectangular Coordinate System
Lessons
• Lesson 1: The Squariest Square
• Lesson 2: Hip to Be Square
• Lesson 3: Ts and Train Tracks
• Lesson 4: Where Has Polly Gone?
• Lesson 5: In and Out and All About
Topic 2: Rigid Motions on a Plane
Lessons
• Lesson 2: Bow Thai
• Lesson 3: Staring Back at Me
• Lesson 4: Turn Yourself Around
• Lesson 5: Slide, Flip, Turn: The Latest Dance Craze?
• Lesson 6: OKEECHOBEE
Topic 3: Congruence Through Transformations
Lessons
• Lesson 1: Elemental
• Lesson 2: ASA, SAS, and SSS
• Lesson 3: I Never Forget a Face
MATHia Workspaces

Module 1: Reasoning with Shapes

Topic 1: Using a Rectangular Coordinate System

Unit: From Informal to Formal Geometric Thinking
Unit: Slopes of Parallel and Perpendicular Lines
Unit: Distances on the Coordinate Plane
Unit: Composite Figures

Topic 2: Rigid Motions on a Plane

Unit: Geometric Components of Rigid Motions

Unit: Reflectional and Rotational Symmetry

Topic 3: Congruence Through Transformations

Unit: Formal Reasoning in Euclidean Geometry
Unit: Triangle Congruence Theorems
Enhanced Topic Assessments

Module 1:Reasoning with Shapes

Topic 1: Using a Rectangular Coordinate System
Topic 2: Rigid Motions on a Plane
Topic 3: Congruence Through Transformations

Student Lesson Overview Videos

Module 1: Reasoning with Shapes
Topic 1: Using a Rectangular Coordinate System
Lessons
• Lesson 1: The Squariest Square
• Lesson 2: Hip to Be Square
• Lesson 3: Ts and Train Tracks
• Lesson 4: Where Has Polly Gone?
• Lesson 5: In and Out and All About
Topic 2: Rigid Motions on a Plane
Lessons