diff --git a/01 - JavaScript Drum Kit/index-START.html b/01 - JavaScript Drum Kit/index-START.html
index 4070d32767..e825e72969 100644
--- a/01 - JavaScript Drum Kit/index-START.html	
+++ b/01 - JavaScript Drum Kit/index-START.html	
@@ -58,6 +58,25 @@
   <audio data-key="76" src="sounds/tink.wav"></audio>
 
 <script>
+  function playSound(e) {
+    const audio = document.querySelector(`audio[data-key="${e.keyCode}"]`);
+    const key = document.querySelector(`.key[data-key="${e.keyCode}"]`);
+    if (!audio) return; // stop running if no audio
+    audio.currentTime = 0; //rewind to start
+    audio.play();
+    console.log(key);
+    key.classList.add('playing');
+  }
+
+  function removeTransition(e) {
+    if(e.propertyName !== 'transform') return; //skip if not a transform
+    this.classList.remove('playing');
+  }
+
+  const keys = document.querySelectorAll('.key');
+  keys.forEach(key => key.addEventListener('transitionend', removeTransition));
+
+  window.addEventListener('keydown', playSound);
 
 </script>
 
diff --git a/02 - JS + CSS Clock/index-START.html b/02 - JS + CSS Clock/index-START.html
index 2712384201..e790175649 100644
--- a/02 - JS + CSS Clock/index-START.html	
+++ b/02 - JS + CSS Clock/index-START.html	
@@ -61,12 +61,34 @@
       background:black;
       position: absolute;
       top:50%;
+      transform-origin:100%;
+      transform:rotate(90deg);
+      transition:all 0.05s;
+      transition-timing-function: cubic-bezier(0.1, 1.99, 0.6, 1);
     }
 
   </style>
 
   <script>
+  const secondHand = document.querySelector('.second-hand');
+  const minuteHand = document.querySelector('.min-hand');
+  const hoursHand = document.querySelector('.hour-hand');
+  function setDate () {
+    const now = new Date();
+    const seconds = now.getSeconds();
+    const secondsDegrees = ((seconds / 60) * 360) + 90;
+    secondHand.style.transform = `rotate(${secondsDegrees}deg)`;
 
+    const minutes = now.getMinutes();
+    const minutesDegrees = ((minutes / 60) * 360) + 90;
+    minuteHand.style.transform = `rotate(${minutesDegrees}deg)`;
+
+    const hours = now.getHours();
+    const hoursDegrees = ((hours / 12) * 360) + 90;
+    hoursHand.style.transform = `rotate(${hoursDegrees}deg)`;
+  }
+
+  setInterval(setDate, 1000);
 
   </script>
 </body>
diff --git a/03 - CSS Variables/index-START.html b/03 - CSS Variables/index-START.html
index 7171607a8b..bc23a829e7 100644
--- a/03 - CSS Variables/index-START.html	
+++ b/03 - CSS Variables/index-START.html	
@@ -22,6 +22,22 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
 
   <style>
 
+  :root {
+    --base: #ffc600;
+    --spacing: 10px;
+    --blur: 10px;
+  }
+
+  img {
+    padding: var(--spacing);
+    background: var(--base);
+    filter: blur(var(--blur));
+  }
+
+  .h1 {
+    color: var(--base);
+  }
+
     /*
       misc styles, nothing to do with CSS variables
     */
@@ -48,6 +64,15 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
   </style>
 
   <script>
+    const inputs = document.querySelectorAll('.controls input');
+
+    function handleUpdate () {
+      const suffix = this.dataset.sizing || '';
+      document.documentElement.style.setProperty(`--${this.name}`, this.value + suffix);
+    }
+
+    inputs.forEach(input => input.addEventListener('change', handleUpdate));
+    inputs.forEach(input => input.addEventListener('mousemove', handleUpdate));
   </script>
 
 </body>
diff --git a/04 - Array Cardio Day 1/index-START.html b/04 - Array Cardio Day 1/index-START.html
index 927fb03540..fba03967e9 100644
--- a/04 - Array Cardio Day 1/index-START.html	
+++ b/04 - Array Cardio Day 1/index-START.html	
@@ -32,29 +32,71 @@
 
     // Array.prototype.filter()
     // 1. Filter the list of inventors for those who were born in the 1500's
-
+    const fifteen = inventors.filter(inventor => (inventor.year >= 1500 && inventor.year <= 1599));
+    console.table(fifteen);
     // Array.prototype.map()
     // 2. Give us an array of the inventors' first and last names
-
+    const fullNames = inventors.map(inventor => (`${inventor.first} ${inventor.last}`));
+    console.log(fullNames);
     // Array.prototype.sort()
     // 3. Sort the inventors by birthdate, oldest to youngest
+    // const ordered = inventors.sort(function(a, b) {
+    //   if (a.year > b.year) {
+    //     return 1;
+    //   } else {
+    //     return -1;
+    //   }
+    // });
+
+    const ordered = inventors.sort((a, b) => a.year > b.year ? 1 : -1);
+
+    console.table(ordered);
 
     // Array.prototype.reduce()
     // 4. How many years did all the inventors live?
+    const totalYears = inventors.reduce((total, inventor) => {
+      return total + (inventor.passed - inventor.year)
+    }, 0)
 
+    console.log(totalYears)
     // 5. Sort the inventors by years lived
-
+    const oldest = inventors.sort((a, b) => {
+      const lastGuy = a.passed - a.year
+      const nextGuy = b.passed - b.year
+      return lastGuy > nextGuy ? -1 : 1
+    })
+    console.table(oldest)
     // 6. create a list of Boulevards in Paris that contain 'de' anywhere in the name
     // https://en.wikipedia.org/wiki/Category:Boulevards_in_Paris
-
+    // const category = document.querySelector('.mw-category');
+    // const links = Array.from(category.querySelectorAll('a'));
+    // const de = links
+    //               .map(link => link.textContent)
+    //               .filter(streetName => streetName.includes('de'))
 
     // 7. sort Exercise
     // Sort the people alphabetically by last name
+    const alpha = people.sort((lastOne, nextOne) => {
+      const [aLast, aFirst] = lastOne.split(', ')
+      const [bLast, bFirst] = nextOne.split(', ')
+      return aLast > bLast ? 1 : -1;
+    })
+    console.log(alpha)
 
     // 8. Reduce Exercise
     // Sum up the instances of each of these
     const data = ['car', 'car', 'truck', 'truck', 'bike', 'walk', 'car', 'van', 'bike', 'walk', 'car', 'van', 'car', 'truck' ];
 
+    const transportation = data.reduce(function(obj, item) {
+      if (!obj[item]) {
+        obj[item] = 0;
+      }
+      obj[item]++;
+      return obj;
+    }, {
+
+    })
+    console.log(transportation);
   </script>
 </body>
 </html>
diff --git a/05 - Flex Panel Gallery/index-START.html b/05 - Flex Panel Gallery/index-START.html
index e1d643ad5c..570e9e47e4 100644
--- a/05 - Flex Panel Gallery/index-START.html	
+++ b/05 - Flex Panel Gallery/index-START.html	
@@ -24,6 +24,7 @@
     .panels {
       min-height:100vh;
       overflow: hidden;
+      display: flex;
     }
 
     .panel {
@@ -41,6 +42,11 @@
       font-size: 20px;
       background-size:cover;
       background-position:center;
+      flex:1;
+      justify-content: center;
+      align-items: center;
+      display: flex;
+      flex-direction: column;
     }
 
 
@@ -54,8 +60,17 @@
       margin:0;
       width: 100%;
       transition:transform 0.5s;
+      flex: 1 0 auto;
+      display: flex;
+      justify-content: center;
+      align-items: center;
     }
 
+    .panel > *:first-child { transform: translateY(-100%); }
+    .panel.open-active > *:first-child { transform: translateY(0); }
+    .panel > *:last-child { transform: translateY(100%); }
+    .panel.open-active > *:last-child { transform: translateY(0); }
+
     .panel p {
       text-transform: uppercase;
       font-family: 'Amatic SC', cursive;
@@ -68,6 +83,7 @@
 
     .panel.open {
       font-size:40px;
+      flex:5;
     }
 
     .cta {
@@ -107,7 +123,20 @@
   </div>
 
   <script>
+    const panels = document.querySelectorAll('.panel');
+
+    function toggleOpen() {
+      this.classList.toggle('open');
+    }
+
+    function toggleActive(e) {
+      if (e.propertyName.includes('flex')) {
+        this.classList.toggle('open-active');
+      }
+    }
 
+    panels.forEach(panel => panel.addEventListener('click', toggleOpen));
+    panels.forEach(panel => panel.addEventListener('transitionend', toggleActive));
   </script>
 
 
diff --git a/06 - Type Ahead/index-START.html b/06 - Type Ahead/index-START.html
index 1436886918..3b5ea79167 100644
--- a/06 - Type Ahead/index-START.html	
+++ b/06 - Type Ahead/index-START.html	
@@ -17,6 +17,45 @@
 <script>
 const endpoint = 'https://gist.githubusercontent.com/Miserlou/c5cd8364bf9b2420bb29/raw/2bf258763cdddd704f8ffd3ea9a3e81d25e2c6f6/cities.json';
 
+const cities = [];
+
+fetch(endpoint)
+  .then(blob => blob.json())
+  .then(data => cities.push(...data))
+
+function findMatches (wordToMatch, cities) {
+  return cities.filter(place => {
+    const regex = new RegExp(wordToMatch, 'gi')
+    return place.city.match(regex) || place.state.match(regex)
+  });
+}
+
+function numberWithCommas(x) {
+  return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ',');
+}
+
+function displayMatches() {
+  const matchArray = findMatches(this.value, cities)
+  const html = matchArray.map(place => {
+    const regex = new RegExp(this.value, 'gi')
+    const cityName = place.city.replace(regex, `<span           class="hl">${this.value}</span>`)
+    const stateName = place.state.replace(regex, `<span           class="hl">${this.value}</span>`)
+    return `
+      <li>
+        <span class="name">${cityName}, ${stateName}</span>
+        <span class="population">${numberWithCommas(place.population)}</span>
+      </li>
+      `;
+  }).join('');
+  suggestions.innerHTML = html;
+}
+
+const searchInput = document.querySelector('.search')
+const suggestions = document.querySelector('.suggestions')
+
+searchInput.addEventListener('change', displayMatches)
+searchInput.addEventListener('keyup', displayMatches)
+
 </script>
   </body>
 </html>
diff --git a/07 - Array Cardio Day 2/index-START.html b/07 - Array Cardio Day 2/index-START.html
index b80ab6b650..b754e7e04d 100644
--- a/07 - Array Cardio Day 2/index-START.html	
+++ b/07 - Array Cardio Day 2/index-START.html	
@@ -25,16 +25,47 @@
 
     // Some and Every Checks
     // Array.prototype.some() // is at least one person 19?
+    // const isAdult = people.some(function(person) {
+    //   const currentYear = (new Date()).getFullYear();
+    //   if (currentYear - person.year >= 19) {
+    //     return true;
+    //   }
+    // });
+
+    const isAdult = people.some(person => ((new Date())
+    .getFullYear()) - person.year >= 19);
+
+    console.log({isAdult});
     // Array.prototype.every() // is everyone 19?
 
+    const allAdults = people.every(person => ((new Date())
+      .getFullYear()) - person.year >= 19);
+
+    console.log({allAdults});
     // Array.prototype.find()
     // Find is like filter, but instead returns just the one you are looking for
     // find the comment with the ID of 823423
 
+    const comment = comments.find(comment => 
+      comment.id === 823423);
+
+    console.log(comment);
     // Array.prototype.findIndex()
     // Find the comment with this ID
     // delete the comment with the ID of 823423
 
+    const index = comments.findIndex(comment => 
+      comment.id === 823423);
+
+    console.log({index});
+
+    // comments.splice(index, 1);
+
+    const newComments = [
+      ...comments.slice(0, index),
+      ...comments.slice(index + 1)
+    ];
+
   </script>
 </body>
 </html>
diff --git a/08 - Fun with HTML5 Canvas/index-START.html b/08 - Fun with HTML5 Canvas/index-START.html
index 37c148df07..16c45433f4 100644
--- a/08 - Fun with HTML5 Canvas/index-START.html	
+++ b/08 - Fun with HTML5 Canvas/index-START.html	
@@ -7,6 +7,61 @@
 <body>
 <canvas id="draw" width="800" height="800"></canvas>
 <script>
+const canvas = document.querySelector('#draw');
+const ctx = canvas.getContext('2d');
+canvas.width = window.innerWidth;
+canvas.height = window.innerHeight;
+ctx.strokeStyle = '#BADA55';
+ctx.lineJoin = 'round';
+ctx.lineCap = 'round';
+ctx.lineWidth = 100;
+// ctx.globalCompositeOperation = 'multiply';
+
+let isDrawing = false;
+let lastX = 0;
+let lastY = 0;
+let hue = 0;
+let direction = true;
+
+function draw(e) {
+  if(!isDrawing) return;
+  // console.log(e);
+  ctx.strokeStyle = `hsl(${hue}, 100%, 50%)`;
+  ctx.beginPath();
+  // start from
+  ctx.moveTo(lastX, lastY);
+  //go to
+  ctx.lineTo(e.offsetX, e.offsetY);
+  ctx.stroke();
+  [lastX, lastY] = [e.offsetX, e.offsetY];
+
+  hue++;
+  if(hue >= 360) {
+    hue = 0;
+  }
+
+  if (ctx.lineWidth >= 100 || ctx.lineWidth <= 1) {
+    direction = !direction;
+  }
+
+  if (direction) {
+    ctx.lineWidth++;
+  } else {
+    ctx.lineWidth--;
+  }
+
+}
+
+
+canvas.addEventListener('mousedown', (e) => {
+  isDrawing = true;
+  [lastX, lastY] = [e.offsetX, e.offsetY];
+});
+
+canvas.addEventListener('mousemove', draw);
+canvas.addEventListener('mouseup', () => isDrawing = false);
+canvas.addEventListener('mouseout', () => isDrawing = false);
+
 </script>
 
 <style>
diff --git a/09 - Dev Tools Domination/index-START.html b/09 - Dev Tools Domination/index-START.html
index 196fffd719..1cde061bd9 100644
--- a/09 - Dev Tools Domination/index-START.html	
+++ b/09 - Dev Tools Domination/index-START.html	
@@ -18,29 +18,50 @@
     }
 
     // Regular
-
+    console.log('hello');
     // Interpolated
+    console.log('hello I am a %s string!', 'stuff');
 
     // Styled
-
+    console.log('%c I am some text!', 'font-size:20px; background:green;')
     // warning!
-
+    console.warn('Warning!');
     // Error :|
-
+    console.error('Crap!');
     // Info
-
+    console.info('Crocodiles eat 3-4 people');
+    const p = document.querySelector('p');
     // Testing
-
+    console.assert(p.classList.contains('ouch'), "That's wrong");
     // clearing
-
+    console.clear();
     // Viewing DOM Elements
+    console.log(p);
+    console.dir(p);
+    console.clear();
 
     // Grouping together
-
+    dogs.forEach(dog=> {
+      console.group(`${dog.name}`);
+      console.log(`This is ${dog.name}`);
+      console.log(`${dog.name} is ${dog.age} years old`);
+      console.log(`${dog.name} is ${dog.age * 7} dog years old`);
+      console.groupEnd(`${dog.name}`);
+    })
     // counting
-
+    console.count('Blake');
+    console.count('Blake');
+    console.count('Blake');
+    console.count('Blake');
+    console.count('Blake');
     // timing
-
+    console.time('fetching data');
+    fetch('https://api.github.com/users/bschwartz757')
+      .then(data => data.json())
+      .then(data => {
+        console.timeEnd('fetching data');
+        console.log(data);
+    });
   </script>
 </body>
 </html>
diff --git a/10 - Hold Shift and Check Checkboxes/index-START.html b/10 - Hold Shift and Check Checkboxes/index-START.html
index eb7ed310bb..b0f35bc4a7 100644
--- a/10 - Hold Shift and Check Checkboxes/index-START.html	
+++ b/10 - Hold Shift and Check Checkboxes/index-START.html	
@@ -104,6 +104,33 @@
   </div>
 
 <script>
+  const checkboxes = document.querySelectorAll('.inbox input[type="checkbox"]');
+
+  let lastChecked;
+
+  function handleCheck(e) {
+    //Check if shift key was held
+    //And make sure they're checking it
+    let inBetween = false;
+    if (e.shiftKey && this.checked) {
+      checkboxes.forEach(checkbox => {
+        console.log(checkbox);
+        if (checkbox === this || checkbox === lastChecked) {
+          inBetween = !inBetween;
+          console.log('Starting to check in between');
+        }
+        if (inBetween) {
+          checkbox.checked = true;
+        }
+      });
+    }
+    lastChecked = this;
+    // console.log(lastChecked);
+  };
+
+  // console.log(checkboxes);
+  checkboxes.forEach(checkbox => checkbox.addEventListener('click', handleCheck));
+
 </script>
 </body>
 </html>