Skyship Entertainment™ is the creator of the beloved children’s brand, Super Simple™. Their award-winning Super Simple Songs® combines delightful animation and puppetry with original and classic kids’ songs to help make learning simple and fun. With over 10 billion views and 10 million subscribers on YouTube, their songs and videos are favorites with parents, teachers, and kids around the globe.
Second, Keybr.com measures your keystroke dynamics and collects comprehensive typing statistics. For example, it measures your typing speed for each individual key, and uses this data to generate random words putting emphasis on the weakest key. The more troubles you have with a particular key, the more you will be  typing it. It means, the generating algorithm will put that letter in every word in the next generated lesson. Your typing skills are re-evaluated after every completed lesson, and the next lesson will be adjusted accordingly.

It does not matter how fast you type if you have to go back and fix all your mistakes. Fixing mistakes takes more time than it does to just slow down and take the time you need to type accurately. Fast typing depends on developing precision muscle memory. Allowing yourself to type incorrectly will actually reinforce your bad habits and common mistakes! Slow your typing pace until you can attain 100% accuracy. If you come across a difficult word, slow down further to type it properly. Develop good habits and speed will be your reward.
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Khan Academy allows you to learn almost anything for free. Our Xbox app is the best way to view Khan Academy’s complete library of over 5,000 videos. We cover a massive number of topics, including K-12 math, science topics such as biology, chemistry, and physics, and even the humanities with playlists on art history, civics, and finance. Spend an afternoon brushing up on statistics. Discover how the Krebs cycle works. Learn about the fundamentals of computer science. Prepare for the upcoming SAT. Or, if you’re feeling particularly adventurous, learn how fire stick farming changed the landscape of Australia. Included in our Xbox app: - Watch all of our 5,000+ videos - Track your progress: Log in with your Khan Academy user account to get credit for watching videos, and see your achievements It doesn't matter if you are a student, teacher, home-schooler, principal, adult returning to the classroom after 20 years, or a friendly alien just trying to get a leg up in earthly biology; Khan Academy's materials and resources are available to you completely free of charge.


EdX is another leading online-learning platform that is open source instead of for-profit. It was founded by Harvard University and MIT in 2012, so you know that you’ll learn about cutting-edge technologies and theories. Today, edX includes 53 schools. You probably can’t go wrong with the free Introduction to Computer Science from Harvard University.
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