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How can you win when playing Rock, Paper, Scissors? Not with a pure strategy, that’s for sure! This lesson from William Spaniel's Game Theory 101 series teaches you the theory behind this classic game. Do the math and check the payoffs to discover why you just can't beat randomness. Bummer, right? Learn about cycling arguments and why equal payoffs mean you can't easily pin down even a mixed strategy Nash equilibrium.


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Do you want to learn to more effectively cooperate and negotiate with coworkers or friends? Game theory isn't just about winning or losing, it's also about working together to achieve awesome goals. In this lesson in his game theory series, William Spaniel defines the Nash equilibrium, and then clarifies the formal definition with a real world example: traffic.


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Eating healthy starts with the food in your kitchen. If you don’t stock your fridge and pantry with wholesome and nutritious meal options, you will be more likely to take the easy route and order something fast and greasy elsewhere. In this lesson, Darya Rose, author of Foodist and creator of Summer Tomato, offers several tips and tricks for easing your way into cooking healthy meals at home.


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While diets may work to keep you healthy in the short term, the stress that they put on your mind and body sets you up for a big crash later. As Darya Rose, author and creator of Summer Tomato, explains, the secret is in taking small steps to build healthy habits instead of using up all of your hard-earned willpower. Start getting healthy for the long term today!


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How do you determine right from wrong when human lives are on the line? Follow along with Professor Massimo Pigliucci as he considers the philosophical and neurobiological answers to this question. This lesson offers a review of Aristotle's virtue ethics, Kant's deontology, and Bentham and Mill's utilitarianism, and then analyzes the classic philosophical thought experiment, the Trolley Dilemma. Learn how different parts of the brain are used for making rational versus emotional moral judgments.


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You want to play golf, but your friend wants go surfing, and you'd both rather be together than not. It is in your best interest to make the same decision, but you have a few options, and you have to decide without knowing your friend's decision. Learn how to run a mixed strategy algorithm to determine if there is a mixed strategy equilibria. Once you can calculate the payoffs for a mixed strategy, you can make an educated decision and choose the option with the highest probability of success.


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Before you set out on your next adventure in the great outdoors, make sure you have the right food—and enough of it! Elaine Johnson, associate food editor at Sunset magazine, reveals what to prep ahead, why you should use a grocery list, how to pack a cooler to keep fragile foods safe and secure, and more. With all of the meals squared away in advance, you can spend less time hovering over the grill and more time enjoying the fresh air.


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What happens if two suspects are taken in for questioning on suspicion of robbery? If everyone is looking out for their own interests, the results might surprise you! Follow along with William Spaniel as he explains this classic game theory scenario. Learn how to decide which outcomes are most likely and what it means for a person to have a "strategically dominant strategy." Continue with the rest of this series to understand how people behave in increasingly complicated scenarios.


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This Advent Calendar is a gift that kids can make for their parents! This lesson shows you step by step how to make an advent calendar. Think of things you can do to help your parents in December, write or draw every promise on a little piece of paper and put them in the Christmas ornaments. For teachers, the lesson attachment has a link to a free companion document containing writing suggestions and sample drawings. Music courtesy of Davenport Productions, used under license.


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Buying all of the accessories for an already expensive doll can add up fast when you start counting clothes, houses, beds, cars and who knows what else. Build a doll bed yourself for cheaper - that will be of better quality and custom. This bed was designed for an American Girl doll but can be used for any type of doll by adjusting the dimensions.


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Before you get out there and start popping wheelies, learn the basic things that any cyclist should know when attempting tricks on his or her bike. This lesson by Think Bikes provides a checklist for you and your bike (got your helmet? gloves? do your tires have the right pressure?) and shows you how to do one of the most important tricks in the book: the track stand.


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Want to film glamorous and well-lit footage? In this filmmaking lesson, award-winning cinematographer Tom Antos teaches you how to construct a low-budget ring light: a light that wraps around your camera to provide uniform light, even shadows, and attractive reflections off of your subject's eyes and lips. To make your ring light you'll need plywood, 40-watt light bulbs and sockets, a dimmer switch, screws, and wire. Ring lights are perfect for commercials, music videos, or fashion shoots.


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From gathering tools and materials to devising a final script, planning a high-quality lesson is a challenge. If you’re having trouble, take some tips from crafting experts and producers of over a dozen Curious lessons, the O’Neil Sisters. Whether you are thinking about creating your own how-to videos or you’d like to improve the quality of an upcoming series, use these tips and tricks to create clear, structured, and attractive lessons.


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Have you mastered the double crochet and slip stitch? Are your friends and family always complimenting your handmade crochet scarves and accessories? If you want to start selling your crochet for profit, this is the course for you! You’ll learn how to create a business plan to make your dream into a reality. Begin by thinking about your audience, inventory, pricing, and advertising strategy.


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Not all bicycle seats are created equally! Neither will all bicycle seats fit you comfortably, or affect your performance the same way. Once you know what saddle width you need, determine what style fits you best; consider your physique and your riding position. This lesson from Art’s Cyclery highlights three different saddles: the Arione for the average rider, the WTB Devo for riders with a climber’s build (toned thighs and a thin physique), and the San Marco Concor for more muscular riders.


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New to the iPhone 5s? Excited to explore its features? In this lesson by The Unlockr, learn how to set up and use Touch ID by scanning your fingerprints accurately. Scan one or two fingers, or take the time to record all of them! With Touch ID correctly set up, your phone will be secure from prying eyes (and fingers).


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Most likely you are familiar with Botticelli’s painting, “The Birth of Venus”; you may not have known that it was a Botticelli, but chances are you’ve seen the image. But do you know the mythology behind the painting? “The Birth of Venus” tells the story of the Roman goddess of love’s birth from sea foam (foam that was fertilized by Zeus’ castrated genitals—yikes), in both a beautiful, and mathematically genius way. Learn about the Golden Rectangle and what it is doing in this famous painting.


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If you run your own business, you know how hard it is to keep track of payroll, inventory, customers, and vendors. Guess what? There is an easy way to manage these and other accounting tasks without breaking a sweat! In this first lesson of a beginner QuickBooks course, get an overview of this powerful accounting software and learn just how easy it is to master! Learn to set up a company file, enter critical information, and get ready to use QuickBooks!


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Do you want to reduce your landfill waste by 30% while making your garden grow healthier and more fruitful? If so, learn how to compost! In this lesson from Grow Organic, Trisha walks you through the process of creating your very own compost pile, beginning with how to select a container (if you want one), to what kinds of materials belong in your pile and which ones don’t. Take good care of your pile, and in a couple of months you’ll have beautiful, nutrient rich compost for your garden!


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