Instructional Video
Khan Academy

Khan Academy: Weighted Average of Two Points

9th - 10th
This video [3:56] lesson focuses on how to bridge two worlds: the world of images and geometry and the world of algebra, numbers, and equations. We will develop a formula that will allow us to compute points exactly on the parabola. And...
Instructional Video
Khan Academy

Khan Academy: Split vs. Average (Video)

9th - 10th
In this video [3:04] lesson, students first need to make sure they understand exactly what happens in the split & average steps. Click link to go to the Environment Modeling lesson. In the first part of the lesson we'll be looking...
Instructional Video
Khan Academy

Khan Academy: Introduction to Subdivision Surfaces

9th - 10th
This video [1:59] is an introduction to subdivision surfaces. You can animate it using just a couple of points so we've solved the complex problem of creating curves by breaking it down into steps we can solve with math.
Instructional Video
Khan Academy

Khan Academy: Fun With Weights (Video)

9th - 10th
Let's take a closer look at the weights used during subdivision in this video [2:52]. Do we have to be careful when selecting weights? Click "Click here" to learn more about Pascal's Triangle and the Binomial theorem. Click "Click here"...
Instructional Video
Sophia Learning

Sophia: Value and Weighted Average

9th - 10th
In this lesson, students will learn Value and Weighted Average.
Instructional Video
Sophia Learning

Sophia: Application of Mixture Problems

9th - 10th Standards
Here we look at a word problem related to mixture problems.
Instructional Video
Sophia Learning

Sophia: Weighted Average

9th - 10th Standards
This lesson will introduce the meaning of weighted average, and demonstrate how to solve for the weighted average of a data set. Student watch a video tutorial and then can take an online quiz.