Instructional Video6:51
Professor Dave Explains

Back to Algebra: What are Functions?

12th - Higher Ed
An introduction to functions.
Instructional Video6:53
Curated Video

Calculating Conditional Probabilities

K - 5th
This video provides examples and guides the viewer through the steps to find the probability of an event occurring given that another event has already occurred. The video covers a range of scenarios, including drawing cards from a deck...
Instructional Video5:32
Curated Video

Partitioning Rectangles into Same-Sized Squares Using Columns and Rows

K - 5th
In this video, the teacher demonstrates how to partition a rectangle into same-sized squares by creating columns and rows. By using lines to separate the rectangle into sections, students can easily visualize and count the number of...
Instructional Video6:01
Curated Video

Identifying Line Symmetry in Irregular Polygons

K - 5th
In this video, the teacher explains how to identify line symmetry in irregular polygons. They discuss the three options for line symmetry - horizontal, vertical, and diagonal - and emphasize the importance of having matching parts when...
Instructional Video5:29
Curated OER

What Does Undefined Slope Mean?

6th - 9th
The graph of a line with an undefined slope is a vertical line. Why is it undefined? It has something to do with the value of the x-coordinate. The x-coordinate determines the run of the slope. So what if the run is zero? The instructor...
Instructional Video2:30
Curated OER

How Do You Graph a Vertical Line?

7th - 10th
Draw a graph, label the units, plot the given point, then draw a straight line up and down through the given point. That is now the graph of a vertical line through a given point.
Instructional Video4:31
Curated OER

What Are Vertical Lines?

5th - 8th
What does the graph of a vertical line look like? Well, it is a line that is straight up and down. What does the equation of a vertical line look like? So what kind of slope does a vertical line represent? Does the equation of a vertical...
Instructional Video
Virtual Nerd

Virtual Nerd: What Are Vertical Lines?

7th - 9th Standards
All vertical lines have the same slope. Watch this tutorial to learn all about vertical lines including their slope and what the equation of a vertical line looks like. [4:30]
Instructional Video
Virtual Nerd

Virtual Nerd: What Does Undefined Slope Mean?

7th - 9th
An undefined slope is the slope of a vertical line where the x-coordinate never changes no matter what the y-coordinate is. Watch this tutorial to learn more about the meaning of undefined slope. [5:29]
Instructional Video
Sophia Learning

Sophia: Writing an Equation for Vertical and Horizontal Lines in Real Life

9th - 10th
In this lesson, student will learn Writing an Equation for Vertical and Horizontal Lines in Real Life. Student watch a video tutorial and then take an online quiz.