Scholastic
Study Jams! Transformations
Flip, spin, and shift with this vocabulary-rich video on transformations. Learners watch different movements and see how to move an object without affecting its size. The video follows with a multiple choice assessment that...
PBS
Human Tree: Dilations
Look at dilations exponentially. Using a fractal from a museum exhibit, the installment from the Math at the Core: Ratios series introduces the term dilation. The presenter points out that dilations can make images either smaller or...
Khan Academy
Khan Academy: Geometry: Similarity Postulates
Explains the minimum amount of information needed to determine if two triangles are similar. Names and illustrates the similarity postulates: AA, SSS, and SAS. [12:14]
Loyola University Chicago
Math Flix: Congruency
This QuickTime movie provides an opportunity to learn about the basic geometric term congruency. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept.
Loyola University Chicago
Math Flix: Proportion Similar Figures
This QuickTime movie applies the concept of proportion to similar geometric figures. As you watch and listen to the teacher and students interact it helps clarify the thinking behind applying this concept. Allow loading time.
Virtual Nerd
Virtual Nerd: What Is a Transformation?
Transformations allow you to change or move a figure. Learn about all the different kinds of transformations by watching this tutorial. [4:18]
Virtual Nerd
Virtual Nerd: What Does Congruent Mean?
Video tutorial explores the term congruent which is often used to describe figures that have the same size and shape. [5:21]
Virtual Nerd
Virtual Nerd: What Are Similar Figures?
Two figures that are the same shape and have the same angle measurements are similar figures. Learn all about them in this tutorial. [7:22]
Virtual Nerd
Virtual Nerd: What Are Corresponding Parts in Similar Figures?
Video tutorial explains how to identify corresponding parts in similar figures. [6:28]
Sophia Learning
Sophia: Corresponding Parts
In this video tutorial [7:00], students will explore corresponding parts of similar objects, and determine that angles are congruent and sides are proportional.
Sophia Learning
Sophia: Transformations/rotations of Geometric Figures
This video lesson [3:32] demsonstrates how to rotate geometric figures in the coordinate plane. Students can check their understanding with an assessment.
Virtual Nerd
Virtual Nerd: How Do You Figure Out if Two Figures Are Similar?
Follow along with this tutorial to see an example of how to determine if two given figures are similar. [7:49]
Planet Nutshell
Planet Nutshell: Math Shorts: Rotation
An animated video that explains rotations in transformational geometry. [1:44]
Imagine Learning Classroom
Learn Zillion: Prove Two Figures Are Similar After a Dilation
In this lesson, you will learn how to determine if two figures are similar by using dilations and scale factors. [5:23]
Loyola University Chicago
Math Flix: Similar Figures: Proof Using Proportions
This QuickTime movie provides an opportunity to develop the basic geometric term, similar, by checking to see if figures are proportionaly similar. As you watch and listen to the teacher and student interact it helps clarify the thinking...
Loyola University Chicago
Math Flix: Similar Figures: Cross Multiplication
This QuickTime movie provides an opportunity to develop the basic geometric term, similar, by using cross multiplication to see if figures are similar. As you watch and listen to the teacher and student interact it helps clarify the...
PBS
Pbs Learning Media: Scale City: Similar Figures in the Real World
This video features the Louisville Slugger Museum and Factory, home to the world's largest bat. Students see the role that measurement and engineering play in making bats to professional players' specifications and are asked to consider...
Loyola University Chicago
Math Flix: Similar Figures: Concept Development
This QuickTime movie provides an opportunity to develop the basic geometric term, similar, by comparing figures that are and are not mathematically similar. As you watch and listen to the teacher and student interact it helps clarify the...
Khan Academy
Khan Academy: Performing Rotations
Demonstrates how to use an interactive tool to rotate a pentagon on a Cartesian grid. [1:25]
Sophia Learning
Sophia: Corresponding Parts: Lesson 1
This lesson [2:00] will define the phrase corresponding parts (e.g. angles, sides, etc.). It is 1 of 5 in the series titled "Corresponding Parts."
Sophia Learning
Sophia: Translations of Geometric Figures: Lesson 2
This lesson will present how to translate a geometric figure on a coordinate plane, and will discuss how the properties of the figure are affected. It is 2 of 5 in the series titled "Translations of Geometric Figures."
Sophia Learning
Sophia: Corresponding Parts: Lesson 2
This lesson [4:27] will define the phrase corresponding parts (e.g. angles, sides, etc.). It is 2 of 5 in the series titled "Corresponding Parts."
Sophia Learning
Sophia: Similar Solids and Similar Figures: Lesson 2
This lesson explains how similar solids are related to similar figures in two-dimensions. It is 2 of 5 in the series titled "Similar Solids and Similar Figures."
Shmoop University
Shmoop: Transformations
Explore reflections, rotations, and translations across a coordinate grid. [2:08]