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index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<title>Bayesian Knowledge Tracing</title>
<meta name="description" content="Explaining Bayesian Knowledge Tracing Using ASL">
<meta property="og:image" content="img/socimg.png" />
<link rel="stylesheet" href="css/style.css">
<link rel="shortcut icon" href="img/icon.png">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
</head>
<!-- Intro/P(guess) -->
<body>
<!-- Slide 1 -->
<section id='read-bkt' class="quiz">
<div class='content'>
<div id='bkt-image' class="three-letters" title="Guess the word" alt="BKT spelled in American Sign Language">
<img class="letter-image" src="img/letters/b.jpg" title="Guess the word" alt="The letter B in ASL">
<img class="letter-image" src="img/letters/k.jpg" title="Guess the word" alt="The letter K in ASL">
<img class="letter-image" src="img/letters/t.jpg" title="Guess the word" alt="The letter T in ASL">
</div>
<h3>What is the word above?</h3>
<p><em>Hint: It's what we're going to be learning about today!</em></p>
<form id="q1" class="one-input">
<input class="text" type="text" id="a1" title="Type guess here..." placeholder="Type guess here..." output="#guess" />
<input class="button" id="b1" title="Submit guess!" type="button" value="Submit guess!" link="#intro">
</form>
</div>
</section>
<!-- Slide 2 -->
<section id='intro' class='hide'>
<div class="content">
<p id="guess" class="output"><b>You guessed:</b> </p>
<p>
You may have recognized the hand signals above as <b>American Sign Language (ASL)</b>,
but chances are, you probably didn’t know what specific letters they were.
The process of spelling words using hand shapes in ASL is called
<b>fingerspelling</b>.
</p>
<p>
Ready for the answer? <span id="reveal-bkt" title="Yes!" class="link reveal">Yes!</span>
</p>
<div id="bkt-answer" class="hide">
<div id="bkt-box" class="letter-box">
<div class="letter">
<img class="letter-image" src="img/letters/b.jpg" title="B" alt="The letter B in ASL">
<div class="letter-text"><p>This is a</p> <h3 class="orange">B</h3></div>
</div>
<div class="letter">
<img class="letter-image" src="img/letters/k.jpg" title="K" alt="The letter K in ASL">
<div class="letter-text"><p>This is a</p> <h3 class="light-pink">K</h3></div>
</div>
<div class="letter">
<img class="letter-image" src="img/letters/t.jpg" title="T" alt="The letter T in ASL">
<div class="letter-text"><p>This is a</p> <h3 class="dark-pink">T</h3></div>
</div>
</div>
<p>This spells <b>BKT</b>, which stands for <b>Bayesian Knowledge Tracing</b>.</p>
</div>
<i class="continue hide fa fa-caret-down" title="Continue" aria-hidden="true" link="#guess-slider"></i>
</div>
</section>
<!-- Slide 3 -->
<section id="guess-slider" class="hide">
<div class="content">
<p>
Don’t worry if you got it wrong, though. What do you think the chances are that
someone who doesn’t know ASL would have guessed this word correctly by chance?
</p>
<div class="slider-all">
<p class="slider-top-text">Drag the slider!</p>
<div class="slider-container">
<p class="slider-label light-pink">Pretty Small</p>
<input type="range" min="0.0" max="1.0" value="0.5" step="0.01" class="slider" id="g-slider" />
<p class="slider-label orange">Pretty Big</p>
</div>
<input class="button dark center reveal" id="b2" title="Done" type="button" value="Done">
</div>
<div id="slider-answer" class="hide">
<p>If you said pretty small, you’d be right.</p>
<p>
So what does this have to do with Bayesian Knowledge Tracing? Well, BKT is
an artificial intelligence algorithm that helps us predict what people know –
often students, since BKT is typically used in educational contexts
(e.g., Khan Academy and other online learning sites).
</p>
</div>
<i class="continue hide fa fa-caret-down" title="Continue" aria-hidden="true" link="#guess-info"></i>
</div>
</section>
<!-- Slide 4 -->
<section id="guess-info" class="hide last-slide">
<div class="content">
<p>
Like many algorithms, BKT relies on parameters to compute its output, which in this case is the
probability that a student has learned a skill. Each parameter is essentially a probability
(i.e., any number between 0 and 1, inclusive).
</p>
<p>
And <i>guess</i> what? You already know about the first parameter, <b>P(guess)</b>, which is the
probability that a student will answer correctly despite not knowing a skill.
</p>
</div>
<a class="next-page hide" title="Next Page" href="init" target="_self">Next <i class="fa fa-long-arrow-right" aria-hidden="true"></i></a>
</section>
<script src="js/script.js"></script>
</body>
</html>