An introduction to differential equations. Diff equations are some of the most useful types of equations in all of mathematics. They tend to show up in all types of fields such as physics, chemistry, economics and even in biology and medicine. It is therefor important that one understands the theory behind differential equations prior to using them.

This video presents 10 different graphs every student should have mastered. They tend to come up time and time again, might as well learn these by heart. This is not to say that only these 10 graphs or important but hey, you’ve gotta start somewhere!

This video contains some basic information about limits. This can be particularly helpful if you’re new to the concept of limits or if you simply wish to refresh your memory.

Part 1 of Basic Trigonometry. This video introduces some important trig concepts.

A short introduction to trigonometry. Among other things, the sine, cosine and the tangent is covered. We also get to learn about the famous mnemonic for remembering the relationships between them (in terms of being adjacent or opposite), namely: sohcahtoa or so cah toa. An introductory video to start out with if you’re new to trigonometry.

Part 2 of Basic Trigonometry. This video contains more examples.

A short introduction to trigonometry. Among other things, the sine, cosine and the tangent is covered. We also get to learn about the famous mnemonic for remembering the relationships between them (in terms of being adjacent or opposite), namely: sohcahtoa or so cah toa. An introductory video to start out with if you’re new to trigonometry.

In this video some different formulas for variance is introduced. It’s important so you won’t get confused when you see one formula in one textbook and another in some other textbook. There are simply put, alternate ways of writing it. Understanding the different formulas gives you a deeper intuition into the matter at hand.

Examples of some basic derivatives. You’ll need to master the basic ones before you can proceed to learn more advanced derivatives.

This video deals with the addition and subtraction of functions. Learn how to algebraically add and subtract functions. This something everyone needs to know if they intend to master algebra.

In this video, addition in it’s most basic form is covered. If you need to refresh your memory on addition, this is the video to watch. It doesn’t get any more basic than this. The video starts of from 1+1 and then continues from there.