Doug Discovers Search Results

How To: Compare 2 distributions with the Z-Score formula

This is a video tutorial in the Education category where you are going to learn how to compare 2 distributions with the Z-Score formula. In this example Doug's class has X bar as 71 and a standard deviation of 4. Corey's class has X bar as 68 and a standard deviation of 11. If both Doug and Corey beat the class average and have the same standard score, will Doug have a lower grade than Corey? If both of them have a standard score of 1.5, then Doug will get 77 marks and Corey will get 84.5 mar...

How To: Make a Doug's Deafall trap

If you're out in the wilderness, need food, and any sophisticated equipment like guns, catching food can be a very difficult proposition. In this video, we learn how to make a trap called Doug's Deadfall, a very simple but effective deadfall trap. It was culled from Les Stroud's book Survive. No word on who Doug is, but we owe him many thanks.

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 of Exponents. In this first part of a two video series, Doug's student explains how to subtract the exponents within a polynomial in a simple example that will help you leap over this common math homework hurdle.

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, exponents second, multiplication third, division fourth, addition fifth and subtraction last. A straight forward video and well explained mathematically. Doug includes links to the next few videos in order to see the las...

How To: Multiply fractions

Doug Simms gives a demonstration of multiplying fraction in a simple and easy manner. The simplest problems have proper fractions to be multiplied by proper fractions, and the answer can be arrived at by simply multiplying the numerator (upper value) of one fraction with the numerator of the other, carrying out the same operation with the denominators (lower values) of the two fractions, and finally, reducing the resultant fraction by a common factor, if any. Doug also gives three other examp...

How To: Convert large numbers into scientific notation

Confused about scientific notation? In this informative video, Doug Simms from free math tutoring helps you work with large numbers more efficiently by converting them into scientific notation. Let this expert walk you through easy to understand marker board examples covering all of the basics of scientific notation, including exponents, decimals, and how to convert numbers back and forth between different notation forms. Don't let confusing science problems get you down when Doug Simms is ar...

How To: Measure angles with a protractor in Geometry

Confused with how to use your protractor for Geometry homework? In this helpful video, Doug Simmons from free math tutoring provides easy to understand classroom examples explaining how to use both sets of numbers on your protractor. Provides easy to remember rules that will keep you from fumbling with the common confusions of protractor use. Doug also explains common mistakes that you should avoid in order to start getting the right answers in your math problems. Finally, math tutorials at y...

How To: Deal with polynomials or "giant fractions"

Do the polynomials, or "giant fractions" in your high school math homework have you puzzled? Let Doug Simms, an expert tutor from free math tutoring, walk you through some easy to follow chalkboard examples. He addresses common snags and challenges in the equation simplification process, as well as some great advice about the kinds of problems that you are likely to see on your math exams. There is no reason to go it alone when Doug Simms is waiting to help you in this free video!

How To: Apply hard wax to cross-country skis

NordicSkiSource.com owner, Doug McSpadden, instructs how to apply a hard wax to your cross country skis. Great informational video for the beginner to advanced skier. You need to have a good iron and patience. Wax the groove of the ski before you place the iron on the base. Make steady consistent passes on the ski.

How To: Practice basic cross-country ski care

NordicSkiSource.com owner Doug McSpadden illustrates basic practices for caring for your XC skis. The more wax you have the faster your skis. Do not ski through dirt; it will ruin your bases. Keep skis waxed when travelling to keep them from drying out. Don't walk across a parking lot.

How To: Solder to a metal strap

This is an instructional video featuring Doug Prime, founder of the Future Engineers Center at the University of Massachusetts Lowell. If you want to make a homemade switch watch this video on using solder to tie the wire. Use sandpaper to clean where you will solder.

How To: Replace the blade of a utility knife

This is an instructional video featuring Doug Prime, founder of the Future Engineers Center at the University of Massachusetts Lowell. This is an instructional on utility knives that are used to cut foam board and cardboard. The blade replacement is integral to this craft or hobby tool's maintenance.

How To: Use a hot glue gun

This is an instructional video featuring Doug Prime, founder of the Future Engineers Center at the University of Massachusetts Lowell. Learn the basics of using this craft tool. A glue gun is a great tool to have in a hobby or arts and crafts workshop.

How To: Solder wires like a professional

This is an instructional video featuring Doug Prime, founder of the Future Engineers Center at the University of Massachusetts Lowell. Melt the solder to connect wires for switches and permanent circuits. Heat the surface before you put the solder on it. Don't drip the solder for it is too much and not necessary. Make sure you wash hands and have a ventilated room because solder sometimes has lead in it.

How To: Cut and strip wires safely

This is an instructional video featuring Doug Prime, founder of the Future Engineers Center at the University of Massachusetts Lowell. Use wire strippers where they are like scissors. To cut off the wire's insulation and strip it you need to know the wire's gauge. Check the gauge on both the wire and the stripper.

How To: Cut metal with aviation snips

This is an instructional video featuring Doug Prime, founder of the Future Engineers Center at the University of Massachusetts Lowell. Aviation snips cut small metal like aluminum, but not big pieces like nails. Nails and large pieces of metal should be cut with bolt cutters. Use eye protection during all cutting of metal. This video shows the cutting of pipe straps.

How To: Cut metal rods with bolt cutters

This is an instructional video featuring Doug Prime, founder of the Future Engineers Center at the University of Massachusetts Lowell. Aviation snips are good for cutting small metal, but nail and steel rods require bolt cutters. Use safety glasses and clear the room as pieces could fly. Stand up as bolt cutters require strength and pressure.

How To: Hold your part with pliers

This is an instructional video featuring Doug Prime, founder of the Future Engineers Center at the University of Massachusetts Lowell. This is a craft or hobby video that shows the technique of using pliers as a tool to stabilize a part or project while you work on it.

How To: Cut with a utility knife safely

This is an instructional video featuring Doug Prime, founder of the Future Engineers Center at the University of Massachusetts Lowell. A utility or razor blade knife is good to cut soft and thin material like cardboard or styrofoam. Cover work surface with scrap. Stand when cutting to be safe. Don't cut like an exacto knife. Be gentle and don't go through the first time.

How To: Ride switch on a snowboard

Doug from Sierra Snowboard demonstrates how to ride switch on a snowboard. As you approach riding switch, do not think about riding backwards. Rather, consider using the strength in your riding to riding with a new foot forward. Take a stance where you can drive from one end of the board to the other. Roll your upper leg out to prevent tucking of the knees. Keep your hips square to the board and do not over rotate them from one end of the board to the other. Rotate your torso and move towards...

How To: Use the A-A Property to determine 2 similar triangles

Dougsimmsonline shows how to determine whether or not 2 triangles are similar. Not only does he go on to show that they are but he describes step by step how to do the math to find missing angles. He does this process twice to show one set of triangles being similar and show the other set of triangles as not being similar. Doug is using a large computer touch screen as his drawing board to show you how this process is done.

How To: Install a custom car exhaust

In this auto repair video series, learn how to install custom custom exhaust on your car from custom car restoration expert Doug Jenkins. Doug and his crew of mechanics and car restoration experts will demonstrate how to replace the exhaust system on a car and teach you safety tips for replacing an car exhaust system.

How To: Make soda cake

In this tutorial, Chef Doug teaches us how to make soda cake. First, take a box of chocolate cake mix and a soda can. Empty the cake mix into the bowl and then open up your soda and whisk it inside. After this is combined and there are no lumps, spray cooking spray into a cake pan. Scrape the cake mix into the baking pan and spread it out until open. Bake this in the oven at 350 degrees for 30 minutes. Once it's finished, take it out of the oven let it cool. Once cooled, you can spread icing ...

How To: Properly roll guitar & mic cables

This Music & Instruments video tutorial shows how to properly roll guitar & mic cables. Master Doug from Tech Support demonstrates how to do this in this video. First remove all the kinks from the cable before rolling it. Put one end of the cable in one hand; say in the left hand and with the right hand make loops and place them in the left hand. Make sure you don’t entangle the cable while doing this. If the cable is longer, do this process by placing the cable on the ground. Make sure that ...

How To: Use a formula to calculate the volume of a cube

Calculating the volume of a cube is very important in high school geometry classes. Calculating the volume of a solid can be confusing at first, but with a little practice you will be able to get it right. In this tutorial, high school math teacher Doug Simms teaches you exactly how to calculate the volume of a cube and offers examples so you can follow along. Listen to Mr. Simms and you will be at the top of your class!

How To: Simplify a radical expression

Doug Simms online shows how to simplify the radical in a mathematical equation. If you need to brush up on your learning this video can help. Start by finding what is the largest square of the number in your radical. If that number can be solved then solve it, put the answer outside the box and the remainder in the radical. There are some great examples to follow including what to do if your number has a solution, or if there are two factors that your equation can create.

How To: Graph a straight line given its equation

Doug Simms who runs a page at free math tutoring shows in this video a very broken down process that can help you understand how to graph a straight line from an algebraic equation and why it is that way. On a smart projecting board, in a slide show creating software, he explains at a steady pace how to break down a line into its individual line intercepts and an extra point thrown in for verification. After that, he takes the points and puts them on a graph to show you how to. You'll just ha...

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