# Archive | October, 2018

We’ll continue our lessons on Trigonometry by looking at degrees and radians. What are they? How can we use them? Watch our video to learn this, and more!

## Trigonometry: Intro to the Unit Circle – II

Most people don’t know how to use the trig unit circle formula. We discuss this, and many other useful math ideas in our video. Clike here!

## Trigonometry: Intro to the Unit Circle – I

Look out! We’re diving into a more expansive view of trig by taking a look at the unit circle. Transcript: Intro to the Unit Circle 1 This is where trigonometry really gets interesting. So, first I’ll say that one of the far ranging patterns in mathematics, this is big picture. Is that once mathematicians had […]

## Trigonometry: Fundamental Trig Identities

What are the fundamental trig identities that you need to know? In our next video on trigonometry, we discuss this, and more. Click here to check it out!

## Trigonometry: SOHCAHTOA and Special Triangles

In our last trigonometry video, we discussed SOHCAHTOA. Now we move on to a discussion of SOHCAHTOA and special triangles. Transcript: SOHCAHTOA and Special Triangles Now that we’ve introduced SOHCAHTOA, we can talk about the very important topic of SOHCAHTOA and special triangles. So this lesson will assume, first of all, that you’re familiar with […]

## Trigonometry: Intro to SOHCAHTOA

Do you have any idea what the mnemonic sohcahtoa means in trigonometry? In the first of our trig videos, we explore this odd word, and its use in math.

## Coordinate Geometry: Rotations on the Coordinate Plane

This is our last video in the coordinate geometry series. Here, we will explore rotations on the coordinate plane. Transcript: Rotations on the Coordinate Plane In the previous video, I talked about reflections in the x-y (coordinate) plane. Sometimes the test also asks about rotations on the coordinate plane. In these cases, the center of […]

## Coordinate Geometry: Reflections on a Coordinate Plane

What do you know about graphing reflections on a coordinate plane? Click here to see our free video on this subject, and many more math topics!

## Coordinate Geometry: Circles in the Coordinate Plane

In today’s video we will take a look at circles in the coordinate plane, whose center is not at zero. Click here for our free math videos!

## Coordinate Geometry: Distance Between Two Points

Do you know how to find the distance between two points? Well, if you want to know, our video below should help you understand this concept. Transcript: Distance Between Two Points Sometimes the test gives two points and asks us for the distance between them. Other times we will need to find distance in the […]