diff --git a/01 - JavaScript Drum Kit/index-START.html b/01 - JavaScript Drum Kit/index-START.html
index 4070d32767..3f7f7cd00a 100644
--- a/01 - JavaScript Drum Kit/index-START.html	
+++ b/01 - JavaScript Drum Kit/index-START.html	
@@ -59,6 +59,27 @@
 
 <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 the function from running
+      audio.currentTime = 0; //restart the sound
+      audio.play();
+      key.classList.add("playing");
+  }
+
+  function removeTransition(e){
+    if(e.propertyName !== 'transform') return; //skip it
+    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 240705d8fe..501e9835c1 100644
--- a/02 - JS + CSS Clock/index-START.html	
+++ b/02 - JS + CSS Clock/index-START.html	
@@ -61,12 +61,37 @@
       background:black;
       position: absolute;
       top:50%;
+      transform-origin: 100%;
+      transform: rotate(90deg);
+      transition: all 0.05s;
+      transition-timing-function: cubic-bezier(0.1, 2.7, 0.58, 1);
     }
 
   </style>
 
   <script>
 
+    const secondHand = document.querySelector('.second-hand');
+    const minuteHand = document.querySelector('.min-hand');
+    const hourHand = document.querySelector('.hour-hand');
+
+    function setDate(){
+      const now = new Date();
+      const seconds = now.getSeconds();
+      const secondsDegrees = ((seconds / 60) * 360) + 90;
+      secondHand.style.transform = `rotate(${secondsDegrees}deg)`;
+      console.log(seconds);
+
+      const mins = now.getMinutes();
+      const minsDegrees = ((mins / 60) * 360) + 90;
+      minuteHand.style.transform = `rotate(${minsDegrees}deg)`;
+
+      const hours = now.getMinutes();
+      const hoursDegrees = ((hours  / 12) * 360) + 90;
+      hourHand.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 bf0f33e3ba..6adbc380d7 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));
+    }
+
+    .hl{
+      color: var(--base);
+    }
+
     /*
       misc styles, nothing to do with CSS variables
     */
@@ -53,6 +69,15 @@ <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 6e28e357d0..984a2bde85 100644
--- a/04 - Array Cardio Day 1/index-START.html	
+++ b/04 - Array Cardio Day 1/index-START.html	
@@ -27,29 +27,83 @@
 
     // Array.prototype.filter()
     // 1. Filter the list of inventors for those who were born in the 1500's
+    const fifteen = inventors.filter(function(inventor){
+      if(inventor.year >= 1500 && inventor.year < 1600){
+        return true; //keep this
+      }
+    });
+    console.table(fifteen);
 
     // Array.prototype.map()
     // 2. Give us an array of the inventory 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;
+      }
+    });
+
+    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(function(a,b){
+      const lastGuy = a.passed - a.year;
+      const newGuy = b.passed - b.year;
+      if(lastGuy > newGuy){
+        return -1;
+      }else{
+        return 1;
+      }
+    });
 
     // 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(function(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..50b8653c6e 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;
     }
 
 
@@ -50,12 +56,22 @@
     .panel4 { background-image:url(https://source.unsplash.com/ITjiVXcwVng/1500x1500); }
     .panel5 { background-image:url(https://source.unsplash.com/3MNzGlQM7qs/1500x1500); }
 
+    /* Flex Items */
     .panel > * {
       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 +84,7 @@
 
     .panel.open {
       font-size:40px;
+      flex: 5;
     }
 
     .cta {
@@ -107,7 +124,20 @@
   </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..71cfaeaddd 100644
--- a/06 - Type Ahead/index-START.html	
+++ b/06 - Type Ahead/index-START.html	
@@ -17,6 +17,44 @@
 <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 bdf6c44415..0367b5ac4b 100644
--- a/07 - Array Cardio Day 2/index-START.html	
+++ b/07 - Array Cardio Day 2/index-START.html	
@@ -25,42 +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);
+    const isAdult = people.some(function(person) {
+      const currentYear = (new Date()).getFullYear();
+      if(currentYear - person.year >= 19) {
+        return true;
+      }
+    });
 
     console.log({isAdult});
+
+
     // Array.prototype.every() // is everyone 19?
+    const allAdults = people.every(function(person) {
+      const currentYear = (new Date()).getFullYear();
+      if(currentYear - person.year >= 19) {
+        return true;
+      }
+    });
 
-    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);
+    const comment = comments.find(function(comment){
+      if(comment.id === 823423){
+        return true;
+      }
+    });
 
     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)
-    ];
+    comments.splice(index, 1);
 
   </script>
 </body>
diff --git a/08 - Fun with HTML5 Canvas/index-START.html b/08 - Fun with HTML5 Canvas/index-START.html
index 37c148df07..b295cda310 100644
--- a/08 - Fun with HTML5 Canvas/index-START.html	
+++ b/08 - Fun with HTML5 Canvas/index-START.html	
@@ -7,6 +7,59 @@
 <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; // stop the fn from running when they are not moused down
+  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/10 - Hold Shift and Check Checkboxes/index-START.html b/10 - Hold Shift and Check Checkboxes/index-START.html
index eb7ed310bb..3ce296cc4b 100644
--- a/10 - Hold Shift and Check Checkboxes/index-START.html	
+++ b/10 - Hold Shift and Check Checkboxes/index-START.html	
@@ -104,6 +104,34 @@
   </div>
 
 <script>
+const checkboxes = document.querySelectorAll('.inbox input[type="checkbox"]');
+
+let lastChecked;
+
+function handleCheck(e) {
+  // Check if they had the shift key down
+  // AND check that they are checking it
+  let inBetween = false;
+  if (e.shiftKey && this.checked) {
+    // go ahead and do what we please
+    // loop over every single checkbox
+    checkboxes.forEach(checkbox => {
+      console.log(checkbox);
+      if (checkbox === this || checkbox === lastChecked) {
+        inBetween = !inBetween;
+        console.log('STarting to check them inbetween!');
+      }
+
+      if (inBetween) {
+        checkbox.checked = true;
+      }
+    });
+  }
+
+  lastChecked = this;
+}
+
+checkboxes.forEach(checkbox => checkbox.addEventListener('click', handleCheck));
 </script>
 </body>
 </html>