Math How-Tos
How To: Find intervals with a TI-83 graphing calculator
Need to know how to use your Texas Instruments graphing calculator for your college math or statistics class? You're in luck... watch this video tutorial to see how to find intervals with a TI-83 graphing calculator.
How To: Proportion population with a TI-83 graphing calculator
Need to know how to use your Texas Instruments graphing calculator for your college math or statistics class? You're in luck... watch this video tutorial to see how to proportion population with a TI-83 graphing calculator.
How To: Test a population mean with a TI-83 graphic calculator
Need to know how to use your Texas Instruments graphing calculator for your college math or statistics class? You're in luck... watch this video tutorial to see how to test a population mean with a TI-83 graphic calculator.
How To: Pair or match with a TI-83 graphing calculator
Need to know how to use your Texas Instruments graphing calculator for your college math or statistics class? You're in luck... watch this video tutorial to see how to pair or match with a TI-83 graphing calculator.
How To: Do a regression equation w/ a TI-83 graphic calculator
Need to know how to use your Texas Instruments graphing calculator for your college math or statistics class? You're in luck... watch this video tutorial to see how to determine a regression equation with a TI-83 graphic calculator. That's not all...
How To: Do a chi-square test on a TI-83 graphing calculator
Need to know how to use your Texas Instruments graphing calculator for your college math or statistics class? You're in luck... watch this video tutorial to see how to perform a chi-square test on a TI-83 graphing calculator.
How To: Use ANOVA with a TI-83 graphing calculator
Need to know how to use your Texas Instruments graphing calculator for your college math or statistics class? You're in luck... watch this video tutorial to see how to use ANOVA with a TI-83 graphing calculator. What is ANOVA? One-way Analysis of Variance.
How To: Start using Computer Aided Design (CAD)
In this CNC Basics Video we go over CAD. CAD Stands for Computer Aided Design. During the CAD step we take our initial design and translate it into the computer. We do this CNC Step so we can change the design, resize it, save it, transfer it to someone else, etc. So check out this beginners tutorial on how to use CAD.
How To: Compute mathematical problems in your head
This educational video tutorial will show you how to compute mathematical problems in your head. You will see some techniques to do some maths problems in your mind. Learn to do algebraic computations in the head without having to look at a calculator. Become a human calculator!
How To: Solve a ten digit number math problem
Check out this video tutorial on how to Solve a ten digit number math problem. This video will show you the key to solving the puzzle to find a 10 digit number, such that 10 digits are divisible by 10, and the first 9 are divisible by 9, and so on.
How To: Perform an astonishing toothpick math trick
Can you satisfy this equation without touching any toothpick? Mentalism?!? Magic Powers?! Just try . Check out this how-to video to perform an astonishing toothpick math trick.
How To: Analyze trigonometric functions graphically
Watch to learn how to use graphs to help analyze sine, cosine, and tangent functions in trigonometry.
How To: Use the law of tangents in trigonometry
This video explains and provides examples for the law of tangents, a law occasionally used in trigonometry.
How To: Use cosine and arc cosine functions in trigonometry
Continuing with the trigonometry series, this lecture focuses on cosine and arc cosine.
How To: Learn about trigonometry
An introduction the trigonometry series with a primer of basic concepts.
How To: Work with 3-dimensional figures in geometry
An introduction to three-dimensional geometry types and working with them. This video is very detailed and good for people who have never worked with three dimensions in geometry before because it concerns only special case figures.
How To: Work with and solve circles in geometry
An intro to many of the key concepts for working with and solving circles. Circles are more complicated than polygons concerning their properties.
How To: Use matrices, Gaussian elimination, and determinants
A close look at using matrices, Gaussian elimination, and determinants. This video is good for beginners who have never used a matrix before.
How To: Learn about types of numbers
Learn about all the different types of numbers, like integers, irrational numbers, and real numbers, in great detail. Also includes how to use a number line, a dichotomist tool, and other methods of number manipulation.
How To: Use sigma notation in math
Sigma Notation. Tetrahedral Numbers. Pyramidal Numbers. You'll learn all about them and some relations between them. Know you're math, or Greek math.
How To: Use weaving numbers in math multiplication
This is Vedic multiplication or Waving multiplication. It also covers Fibonacci's Sieve or Lattice Multiplication, and John Napier's Bones multiplication.
How To: Use the well ordering principle in math
Here, you'll see how to prove that the Well Ordering Principle is equivalent to the Principle of Mathematical Induction.
How To: Apply the method of mathematical induction
The first video explains the Method of Mathematical Induction. It also gives a background of Francesco Maurolico, Pascal and John Wallis. You'll see how to apply the Method of Induction to prove the sum of odd numbers is a square.
How To: Use the Gauss Method to find triangular numbers
The first video is an elementary explanation of triangular numbers and a Gauss demonstration for the sum of the first 100 natural numbers.
How To: Multiply nines, the easy way
See this amazing math trick to help you multiply the number nine. It so easy, you won't believe it! Who needs multiplication tables anyway?
How To: Use special substitutions in calculus II
Lawrence Perez, from Saddleback College, and his assistant Charlie, give this two-part calculus lesson on integrating with special substitutions; rational functions with sine and cosines: Karl Weistrass method.
How To: Use logarithms, with the basics
Lawrence Perez, from Saddleback College, and his assistant Charlie, give this intermediate-algebra lesson on logarithms, the bare basics of them. Know nothing about logarithms? Well, you've come to the right place.
How To: Use logarithms in chemistry intermediate algebra
Lawrence Perez, from Saddleback College, and his assistant Charlie, give this intermediate-algebra two-part lesson on logarithmic applications, chemistry acids and bases. If you've never taken chemistry, well, you should probably go and take it first.
How To: Use scientific notation in pre-algebra
Lawrence Perez, from Saddleback College, and his assistant Charlie, give this pre-algebra two-part lesson on scientific notation. Find out what scientific notation actually is, and see how to work with it.
How To: Convert measurements in pre-algebra
Lawrence Perez, from Saddleback College, and his assistant Charlie, give this pre-algebra two-part lesson on conversions. Need to convert inches to feet? Feet to miles? Feet to yards? Well, check out how.
How To: Use the metric system in pre-algebra
Lawrence Perez, from Saddleback College, and his assistant Charlie, give this pre-algebra lesson on the metric system. If you want to know all about that glorious metric system, well, need I say more?
How To: Use metrix prefixes in pre-algebra
Lawrence Perez, from Saddleback College, and his assistant Charlie, give this pre-algebra lesson on metric prefixes. There's kilo, and deci, and centi, and well, you get the picture.
How To: Do metric conversions in pre-algebra
Lawrence Perez, from Saddleback College, and his assistant Charlie, give this pre-algebra three-part lesson on metric conversions. Why can't we all use the same system of measurement, who knows? But until we see this day, you'll need to know how to do this.
How To: Use applications of rational expressions in algebra
Lawrence Perez, from Saddleback College, and his assistant Charlie, give this beginning-algebra lesson on word problems (or applications) with equations of rational expressions. If you like math, and you like English, than what's the problem?
How To: Subtract numbers on an abacus calculator
Lawrence Perez, from Saddleback College, and his assistant Charlie, give this two-part arithmetic lesson on subtracting with an abacus. Could this be any easier than adding? Maybe, can you "borrow" the knowledge to subtract these numbers without an electric calculator? See for yourself.
How To: Add large numbers with an acabus calculator
Lawrence Perez, from Saddleback College, and his assistant Charlie, give this arithmetic lesson on adding with an abacus. Who needs an electronic calculator anyway? Well, these are some pretty big numbers. If you're scared of all things not-electronic, then stay away.
How To: Use Z tests for the mean in statistics
Lawrence Perez, from Saddleback College, and his assistant Charlie, give this introduction to statistics lesson on using the Z tests for the mean. If you don't know about statistics, well, I don't know what to say.
How To: Use an abacus calculator
Lawrence Perez, from Saddleback College, and his assistant Charlie, give this arithmetic lesson on adding with an abacus. Who needs an electronic calculator anyway?
How To: Add negative numbers in pre-algebra (ASL interpreted)
Lawrence Perez, from Saddleback College, and his assistant Charlie, give this pre-algebra lesson on adding negative numbers together. You'll learn the easiest way to do it, and maybe even freshen up on your subtracting skills. Don't waste your time in summer school, learn it here.
How To: Find volume using rectangular solids in pre-algebra
Lawrence Perez, from Saddleback College, and his assistant Charlie, give this pre-algebra lesson on finding volume with the help of a few rectangular solids. Length times with times height is all you need to remember to get this stuff down.