Need a little help figuring out how to factor the difference of two square? Learn how with this free tripartite video math lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just study for that next big test).
Shiho Masuda Teaches you to make 3-D origami star using recycled materials. The materials required are leftover wrapping paper, ribbons, two 3. 25" cardboard squares, ruler, scissors, glue, double sided tape and an X-acto knife. She cuts out 8 6"x6" squares from paper and glues them back to back to make four double sided squares. The four pieces are folded into 3"x 3" squares and stuck together with double sided tape. The 2 cardboard pieces are covered with paper and 12" ribbons are taped to ...
In this tutorial, we learn how to understand the properties of a square in Geometry. The four angles on the inside of a square have to be right angles. All but be 90 degrees and add up to 360. A square has four equal sides, which you can notate with lines on the sides. The diagonals of the square cross each other at right angles, so all four angles are also 360 degrees. Diagonals have to be equal in length to each other as well. Once you better understand this, you will be able to learn more ...
This is a very basic tutorial which shows you how to set up a square, convert it to a movie script, and then set up an animation and see your square spin. A simple clip, but you can apply it to many different objects, not just squares!
This is a more advanced version of the granny square - the stained glass square, which usually is made with several separate colors of yarn. This tutorial is aimed at people who have already mastered crochet techniques to at least the intermediate level.
There definitely exists logic behind calling these fuzzy crochet squares granny squares. After all, the cozy texture and delicate, retro motif do remind us of Sundays visiting Grandma while she served us tea and sandwiches and she knitted the day away.
Radicals are square roots which are not integers; the square roots of 2 or 3 are examples of radicals. The presenters show simple ways of how to add and subtract such radicals. They explain that by using the method of factoring, the addition or subtraction is made very easy. If the square root of 8, for instance, is in some addition sum, it can be factored into the square root of 4 times the square root 2. Since we know that the square root of 4 is 2 this can be simplified to be 2 times the s...
In this video the instructor shows how to factor the difference of squares using a formula. The formula to find the difference of squares can only be applied if you have two perfect squares. The formula is (a * a - b * b) = (a - b) * (a + b). That is the difference of squares of two numbers is the product of sum of two numbers and difference of two numbers. So when you need to find the difference of squares of two numbers substitute the values in the above formula to directly solve for the fa...
This video explains to you how to find the area of a square. The area of a square is given by the formula
In this video the instructor shows how to calculate the area of a circle using squares. She starts with the formula of the circumference which she says is circumference C = Pi * D, where D is the diameter of the circle. Now she says that you can turn the shape of circle into a square and compute the area of the square there by calculating the area of the original circle. She shows how to do this by cutting up the square into sectors and arranging them in the form of a rough square and calcula...
Wow the next party you go to with the "Color Monte" card trick! Step 1: Stack the cards in your hand
Sudoku is a one-rule puzzle game that can be either satisfyingly simple or deceptively difficult. Step 1
This how-to video demonstrates everything you need to know for lanyard needs. Follow along and find out how to start and finish a lanyard using the square of box stitch (or the circle stitch) throughout. All you need is two lengths of plastic thread. Use your lanyard as a keychain, or to hang a whistle onto. Watch this video tutorial and learn how to make a lanyard using the square or box as well as the circle stitch.
This video tutorial will demonstrate the square stitch. Learn how to do this stitch using a large seed bead and learn how to make this stretch bracelet using the square stitch. Follow along and make this fun seed bead bracelet with the square stitch.
Tim Carter of Ask the Builder demonstrates the basics of a framing square. Tim shows how to make the marks for a simple roof rafter.
Square lashing is a great way to hold two things together at a perpendicular with rope or cord. Like most any knot, there is more than one way to tie it, and in this video you'll learn how to tie the Japanese MKII version of square lashing.
Calling all left-handers! In this video, you'll learn how to crochet a granny square with your left hands using the double crochet method. So for left-handers needing help with crochet, this video is for you. A granny square is a great way to practice and enhance your crocheting skills.
This math lesson from Yay Math covers four-sided shapes in geometry. Learn about the differences and similarities between rectangles, squares and rhombi (the plural of rhombus). The properties of rhombi and squares are covered, so sit back and enjoy this educational (and FUN) math lesson.
Square lashing is a knot-making technique that has been made famous by the Boy Scouts of America's massive pioneering projects, and is really integral to any structure made out of poles like the one you see in the thumbnail. This video will teach you how to use square lashing to bind two poles together perpendicular to one another. You will need to know how to tie a clove hitch to make this work.
There's a reason you feel so coddled, warm, and fuzzy when you visit your Gram Gram's house. Her crochet scarves, thickly woven Afgan blankets, and awesome crochet coasters create an air of love and care.
There's a reason you feel so coddled, warm, and fuzzy when you visit your Gram Gram's house. Her crochet scarves, thickly woven Afgan blankets, and awesome crochet coasters create an air of love and care.
Improve your extreme card manipulation (XCM) with this video tutorial! Watch and learn how to do the Squeeze a Square Display card flourish. This is a perfect card flourish for your magic routine, or to just impress people. It's flashy and elegant. There' s no card trick involved here, just a great performance. Learn the Squeeze a Square Display!
Are you in medical school an planning to be a surgeon? Then here is a how-to video with various different surgical knot tips. The UT Huston Student Surgical Association (SSA) has put together this surgical knot tying online tutorial. Watch as Dr. John R. Potts, MD. demonstrates the two handed square knot. Practice the two handed square knot surgical suture before going into your surgical rotation.
This is an instructional video on how to "complete the square", which is an algebraic technique for solving a quadratic equation. The instructor starts by showing you what a quadratic equation actually is. He describes what "completing the square" actually means, and how it can help simplify a problem that is difficult to factor. He shows a few examples of completing the square, and then shows how it applies to the quadratic equation. He works through a step by step, so it's easy to follow an...
What could be better then macaroni and cheese as a finger food? Liven up any party with these delicious bites of baked mac and cheese.
Learn how to make a towel cake for a bridal shower with this video! To make a towel cake start by folding a towel into a flat square. Then take a second towel and fold it in half. Lay the half folded towel on the table. Lay the towel that is folded into a square on the middle of the towel folded in half. Fold one end of the half folded towel over the folded towel and tuck it under. Then take the other side of the towel and fold it over and tuck it under making a larger folded towel square. Ta...
Learn how to minimize the sum of squared error for regression line problems in stats. Whether you need help studying for that next big stats text or just a hand finishing your homework, you're sure to be well served by this four-part free video math lesson from Salman Khan.
In this tutorial we learn how to multiply and simplify square roots. When you multiply square roots, you will first need to put them under one radical. From here, you will need to factor out what you have. Once you find a perfect square, find the square root of it. You can either write these as all separate equations or pull the perfect root on the outside of the other parts of the equation. Do the math until you find what you are left with. From here, you can do basic math to find what's lef...
In this tutorial, we learn how to rationalize square roots. You cannot have square roots in the denominator of an equation. You need to multiply so the square root goes away. You can do this by multiplying the top and bottom of the equation by the bottom denominator. From here, this will make the square root go away, so your equation will be normal numbers. After you have done this, you will have the equation answered and you will be able to simplify it to find the end answer. You can do this...
Square foot gardening is a type of gardening in which you carefully arrange plants in tiny squares to maximize space and stylistic harmony. Watch this video to learn how to plan and execute a square foot garden in your apartment or house.
Using separate knitted squares in five different colors, this tutorial shows you how to lay out each square on the floor of your craft room in preparation for creating a seven by seven granny square blanket. End the tutorial with a beautiful and colorful blanket!
This video presents a mathematical puzzle which is to be solved by the viewer. The solution is posted in an alternate video, but this video presents the problem of a four digit number which is the square of a smaller number. The first two digits of the square are the same as each other and the last two digits are the same as each other as well. The video calls for the viewer to find the integer whose square is this four digit number without the use of a calculator, although abacuses are allow...
The square knot is also known as the reef knot. In this video, you'll learn the right and proper way to tie a square knot. Knowing how to tie a square know will be useful in many situations, especially in practical and emergency situations.
In this tutorial, we learn how to crochet a Bellevue granny square. Start by adding the slipknot to the crochet hook. Work a chain of four and join with the beginning chain. The first two rounds are going to be a traditional granny square. Chain, pull up, then work three double crochets. Continue doing this for all of them. Chain two, then work three more double crochets. Work the last three double crochets and you will have the base of the granny square complete. Continue doing this, but end...
If you've proven yourself beautifully adept at making snug and cozy granny squares (usually used as coasters), then why not add some spice to your crafting by adding different colors to the mix?
In this video tutorial, viewers learn how to fold a pocket square into the winged puff and rolled puff. For the winged puff, begin by folding the pocket square diagonally in half to form a isosceles triangle. Then fold the two edges towards the middle to form a diamond shape. Now fold the two outer points into the center and fold the bottom flap up, creating a pentagon shape. For the rolled puff, cup the pocket square in one hand, then roll the top of the pocket square downwards with the othe...
Whoever said it's boring to be a square didn't make one out of shiny magnets. This video gives the phrase "thinking inside the box" a whole new dimension.
In this video the instructor shows how to solve an equation with a radical under a radical. If you have an equation with a square root on both sides, with one of the sides having another inner square root under the original square root, it can be a little tricky to solve it.
In this video the instructor shows who to simplify radicals. If you have a term inside a square root the first thing you need to do is try to factorize it. First factorize the numerical term. Write down the numerical terms as a product of any perfect squares. Now split the original radical expression in the form of individual terms of different variables. Now you can pull out the perfect square numerical factors out of the radical. Similarly for the variable terms write the variables as power...
In this video the instructor shows how to factor the GCF and difference of squares. When you are asked to factorize a number or monomial or a polynomial, the way to do is break it down into individual terms. When asked to factorize a binomial, try to pull out any common terms and factorize the simplified equation. When you are asked to factorize the difference of squares use the general formula which states that the factors of (a*a - b*b) is (a-b) * (a+b). Now substitute the given values in t...
