Unit Plan
Texas Education Agency

Texas Gateway: Generalizing Geometric Properties of Ratios in Similar Figures

For Students 9th - 10th Standards
Students will investigate patterns to make conjectures about geometric relationships and apply the definition of similarity, in terms of a dilation, to identify similar figures and their proportional sides and congruent corresponding...
Unknown Type
McGraw Hill

Mc Graw Hill: Glencoe: Self Check Quizzes: Congruent and Similar Figures

For Students 6th - 8th
Use Glencoe's randomly generated self-checking quiz to test your knowledge of congruent and similar figures. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the "Check...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Corresponding Parts of Similar Figures

For Students 6th - 8th Standards
[Free Registration/Login may be required to access all resource tools.] In this lesson, students identify corresponding parts of similar figures. Students examine guided notes, review guided practice, watch instructional videos and...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Similar Polygons and Scale Factors

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Apply the properties of similar polygons.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Similar Polygons and Scale Factors

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] This concept teaches students what similar polygons are and how to use scale factors to solve for missing information in similar polygons.
Activity
Texas Instruments

Texas Instruments: Similar Figures Discovery Activity

For Teachers 9th - 10th Standards
Students can use Cabri Jr. to discover two properties of similar triangles: corresponding angles are congruent and corresponding sides are proportional.
Unit Plan
Sophia Learning

Sophia: Similarity

For Students 9th - 10th Standards
This learning tutorial describes the characteristics of similar figures and how to use scale factor and proportions to determine missing side lengths. The lesson includes PowerPoint presentations and videos demonstrating how to solve...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Similarity

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Recognize similarity in figures
Unknown Type
Khan Academy

Khan Academy: Practice: Determine Similar Triangles: Sss

For Students 8th
In this set of questions, students practice identifying side-side-side similarity among triangles. Includes hints.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Corresponding Parts of Congruent Figures

For Students 6th - 8th Standards
[Free Registration/Login may be required to access all resource tools.] In this lesson, students identify corresponding parts of congruent figures. They examine guided notes, review guided practice, watch instructional videos, and...
Unit Plan
Scholastic

Scholastic: Study Jams! Math: Geometry: Congruent Figures

For Students 5th - 6th
Explore step by step how to determine if figures are congruent?
Handout
Quia

Ixl Learning: Similarity

For Students 7th - 9th Standards
Brush up on your math skills relating to similarity then try some practice problems to test your understanding.
Interactive
Mangahigh

Mangahigh: Shape: Recognize Congruent Shapes

For Students 9th - 10th Standards
Determine whether shapes are congruent or similar.
Unknown Type
Khan Academy

Khan Academy: Congruence and Transformations

For Students 9th - 10th Standards
Given a pair of figures in the coordinate plane, try to map one onto the other and determine whether they are congruent. Includes examples of glide reflections. Students receive immediate feedback and have the opportunity to try...
Activity
National Council of Teachers of Mathematics

Nctm: Figure This: Math Challenges for Families

For Students 2nd - 8th
Students, teachers, and parents alike will enjoy this challenging math site. It contains a clever brain teaser section plus creative problems related to algebra, geometry, measurement, numbers, statistics, and probability. A Spanish...
Activity
Texas Instruments

Texas Instruments: Copying an Angle

For Teachers 9th - 10th Standards
Explore relationships (including congruence and similarity) among classes of two- and three-dimensional geometric objects, make and test conjectures about them, and solve problems involving them.
Whiteboard
ClassFlow

Class Flow: Transformations

For Teachers 9th - 10th Standards
[Free Registration/Login Required] In this flipchart, students apply multiple transformations to create congruent and similar figures in any or all of the four quadrants. Students apply their geometric sense by using multiple...
PPT
Sophia Learning

Sophia: Corresponding Parts: Lesson 5

For Students 9th - 10th Standards
This lesson will define the phrase corresponding parts (e.g. angles, sides, etc.). It is 5 of 5 in the series titled "Corresponding Parts."
Lesson Plan
Other

Nearpod: Introduction to Geometric Transformations

For Teachers 9th - 10th
In this instructional activity, learners will learn how to describe and identify reflections, rotations, translations, and dilations.