Teach First Grade Math Lessons

How To : Deal with "giant fractions"

Doug tries to teach us some basic math fractions. In this particular case, Doug teaches how to do polynomial operations. He uses a chalk board and step by step shows his work on how to do this math. He uses the PEMDAS method but does not explain it. That is parenthesis first, ...more

How To : Apply the 2nd Law of Exponents

Having trouble dividing exponents? Doug Simms from Free Math Tutoring provides an excellent tutorial on applying the 2nd Law of Exponents. If you need to know how to divide polynomials, watch this video covering easy to follow examples explaining and demonstrating the 2nd Law ...more

How To : Divide fractions in math

When you see a problem involving a fraction, don't freak out. Dividing fractions is actually fairly easy once you learn the simple formula of how to do it. Math can be scary, but don't give up. Follow these simple steps, and soon you'll be dividing fractions like a pro. Step ...more

How To : Use optimization methods in calculus

This video shows how to use optimization methods in calculus. Optimization means finding the maximum or minimum values of a quantity or finding when the maximum or minimum occurs.What quantities are optimized in economics?we want to minimize costs or maximize revenue.First ste ...more

How To : Evaluate fractions containing variables

This video is a great one on learning about evaluating fractions. The voice explains how to first plug in the numbers given for each variable in the fractions. He also explains the importance of simplifying the top and bottom first before simplifying the entire fraction. He al ...more

How To : Solve compound inequalities in algebra

In this math lesson, you will learn how to solve compound inequality problems. A compound inequality is a combination of two inequalities joined together by the words “and” or “or”. Examples of compound inequalities: First example: 2x-3<5 and x+14>11 Second example: 5m>65 o ...more

How To : Things to Do on WonderHowTo (11/9 - 11/15)

WonderHowTo is made up niche communities called Worlds. If you've yet to join one (or create your own), get a taste below of what's going on in the community. Check in every Wednesday for a roundup of new activities and projects. This week: mathematical sculptures, burning Xb ...more

How To : Find the volume of a sphere with radius r

Are you slightly rusty on your math skills? This video demonstrates how to find the volume of a sphere with a given radius. The first step is to sketch a solid and cross-sectional view of your sphere to get an understanding of the process to come. Next, find a formula for the ...more

How To : Multiply rational expressions in two "easy" steps

In this Math Made Easy tutorial the instructor shows how to multiply rational equations. He states that multiplying rational equations is simply a process of simplifying equations, in which he says that first the polynomial equations should be factorized. He further shows how ...more

How To : Multiply simple fractions

Watch this video to learn how to multiply fractions by fractions. First multiply the top numbers together. For example, if you have 3/5 * 4/7, multiply 3 * 4 and put your product on top of the fraction you will get as a product. Next, multiply the bottom numbers together and p ...more

News : Alan Wake Review

Looking back on Alan Wake, more than a year and a half after its release, it's still one of my favorite games. The graphics and ambience have held up well in comparison to any other story driven game, and it's still the best third-person horror game out there, in terms of game ...more

How To : Fold a Pentakis Dodecahedron

Math Craft admin Cory Poole provided quite a few recipes for sonobe models in his blog, and I followed one to make the pentakis dodecahedron here. I wasn't that happy with my first result because the colours kept on coming out wrong—i.e. two of the same colour next to each ot ...more

Modular Origami : Icosahedron, Octahedron & Cube

I spent the holiday weekend becoming fluent in the basics of modular origami. With practice, you can churn out the below models surprisingly quickly. Icosahedron, Octahedron & Cube. My first attempt at the octahedron can be seen here, which I found was actually a bit tougher t ...more

How To : Graph an equation

In this video, we learn how to graph an equation. First, pick a point out of the equation and see if it's a solution to the equation. This equation shows where two lines cross in the math problem. See if the two coordinates are part of the line that is on the equation. The two ...more

How To : Find the surface area of a cube

In this video, we learn how to find the surface area of a cube. Finding the surface area of a cube is something everyone will have to do in math. The easy formula to figure out this is: surface area= side x side x 6. Your first step to figuring out the problem is to find the l ...more

How To : Solve quadratic equations by factoring in math

In this video the instructor shows how to solve quadratic equations by factoring. You can solve a quadratic equation by factoring them. To do this first write the equation in the standard from which is a*x*x + b*x + c = 0. Now factor the equation into two smaller equations of ...more

How To : Find a missing angle inside of a triangle

Are math problems getting you down? Well this should be of some help. Here is how to find a missing angle inside of a triangle. Now the first thing to remember when solving this type of question is that the sum of all the three angles inside a triangle is equal to 180 degrees. ...more

How To : Add 3 fractions with common denominators

In this math tutorial the instructor shows us how to add three fractions with common denominators. He says that it is similar to adding two fractions with common denominator. He tells us first to add all the numbers in the numerator which gives us a new number which is the num ...more

News : Tips and Tricks for Gmail

Time to confess a personal bias: I love Gmail. I think it's the best thing since sliced bread. I try to be impartial when I write about software and online services, but seriously -- of all the free email services out there, why would you use anything else? A quick point of o ...more

How To : Dry age a steak

Dry aged steak is a chophouse specialty; but you don't have to go to a fancy restaurant to get this yummy meal. This video will show you how to recreate the superior flavor of real dry-aged steak at home. You Will Need * A whole USDA Prime or Choice roast * Paper towels * Che ...more

News : 2009's Wackiest Inventions

As 2009 comes to a close, the Telegraph presents a compilation of this past year's wackiest inventions. As always, here at WonderHowTo, we are inspired and impressed by ingenuity. The contraptions below range from utter silliness (engagement ring bra) to downright amazing (see ...more

How To : Keep an Eye on Your GPA with Pointo for Android

Even though my high school days are long behind me, I still find myself waking up in a cold sweat worrying about what my GPA is and what college I'm going to be able to get into. During those days I had to rely on coming up with my own equations to figure out my GPA between gr ...more

How To : Faux Ebonise Wood

If you have some worn scuffed wood and want to give it a little bit of life. These steps might help you to ebonise, taking half the time!! First, sand the wood. Start with a 120 grade paper and finish with a 240 grade. From coarse to smooth. Once the surface is clean and smo ...more

How To : Use Traffic Analysis to Defeat TOR

As was mentioned by the great OTW last week, TOR, aka The Onion Router, has had its integrity attacked by the NSA. In an attempt to reduce the anonymity granted by the service, the NSA has opened a great many nodes of their own. The purpose is presumably to trace the origin of ...more

News : Fish Sauce—The Ultimate Umami Bomb

I grew up eating Korean, Japanese, and Chinese food, but it wasn't until college that I experienced Thai and Vietnamese cooking. Once I started, I couldn't get enough of these cuisines. The dishes had an incredible richness and savor that I couldn't identify, but whatever it w ...more

How To : The Best Video Recording Apps for Your iPhone

If you have a modern iPhone, you have an excellent video recorder at your disposal. Every iPhone since the 6S has the ability to shoot in 4K resolution, and each new iteration has brought new capabilities to the table. But even the best mobile shooter can use a little extra he ...more

  • Hot
  • Latest