Instructional Video
Virtual Nerd

Virtual Nerd: The Relationship Between the Surface Areas of Similar Solids

9th - 10th
Video tutorial demonstrates how to find the ratio rule of the surface areas of any similar solids. [5:50]
Instructional Video
Virtual Nerd

Virtual Nerd: How Do You Find a Missing Hypotenuse in a 45 45 90 Triangle?

9th - 10th Standards
In this tutorial, see how to solve for a missing side length by using your knowledge of 45-45-90 triangles to find a scale factor and set up an equation to solve. [4:51]
Instructional Video
Sophia Learning

Sophia: Finding Scale Factors: Lesson 3

7th - 8th
This lesson demonstrates how to find the scale factor. It is 3 of 5 in the series titled "Finding Scale Factors."
Instructional Video
Sophia Learning

Sophia: Scale Factor and Surface Area of Similar Figures: Lesson 2

9th - 10th
This lesson will discuss the relationship between scale factor and surface area of similar figures. It is 2 of 4 in the series titled "Scale Factor and Surface Area of Similar Figures."
Instructional Video
Sophia Learning

Sophia: Scale Factors: Lesson 3

9th - 10th
This lesson defines the phrase scale factor. It is 3 of 5 in the series titled "Scale Factors."
Instructional Video
Sophia Learning

Sophia: Scale Factors: Lesson 1

9th - 10th
This lesson defines the phrase scale factor. It is 1 of 5 in the series titled "Scale Factors."
Instructional Video
Sophia Learning

Sophia: Similar Polygons and Their Perimeters: Lesson 2

9th - 10th Standards
This lesson presents the relationship between similar polygons and the ratio of their perimeters. It is 2 of 5 in the series titled "Similar Polygons and their Perimeters."
Instructional Video
Sophia Learning

Sophia: Using Scale Factor in 3 D Models: Lesson 1

9th - 10th
I will use models of three-dimensional objects to solve real world and mathematical problems. This lesson is 1 of 3 in the series titled "Using Scale Factor in 3D Models."
Instructional Video
Sophia Learning

Sophia: Vectors & Scale Factors: Lesson 2

9th - 10th
This lesson explains the importance of scale when drawing vectors. It is 2 of 2 in the series titled "Vectors & Scale Factors."
Instructional Video
Sophia Learning

Sophia: Using Scale Factor in 3 D Models: Lesson 3

7th - 8th Standards
I will use models of three-dimensional objects to solve real world and mathematical problems. This lesson is 3 of 3 in the series titled "Using Scale Factor in 3D Models."
Instructional Video
Sophia Learning

Sophia: Vectors & Scale Factors: Lesson 1

9th - 10th
This lesson explains the importance of scale when drawing vectors. It is 1 of 2 in the series titled "Vectors & Scale Factors."
Instructional Video
Sophia Learning

Sophia: Using Scale Factor in 3 D Models: Lesson 2

9th - 10th Standards
I will use models of three-dimensional objects to solve real world and mathematical problems. This lesson is 2 of 3 in the series titled "Using Scale Factor in 3D Models."
Instructional Video
Sophia Learning

Sophia: Finding Scale Factors

9th - 10th
This video tutorial demonstrates how to find scale factor. It includes a detailed example. [1:52]
Instructional Video
Sophia Learning

Sophia: Dilations Are Transformations

9th - 10th Standards
Dilation transformations are explored and related to translations and reflections in this video lesson. [3:12]