diff --git a/01 - JavaScript Drum Kit/index-START.html b/01 - JavaScript Drum Kit/index-START.html
index 4070d32767..2a1ec2fa7d 100644
--- a/01 - JavaScript Drum Kit/index-START.html	
+++ b/01 - JavaScript Drum Kit/index-START.html	
@@ -59,6 +59,29 @@
 
 <script>
 
+function playAudio(keyCode){
+  const audio = document.querySelector(`audio[data-key="${keyCode}"]`);
+  const key = document.querySelector(`.key[data-key="${keyCode}"]`);
+  if(audio){
+    key.classList.add('playing');
+    audio.currentTime = 0;
+    audio.play();
+  }
+}
+
+let keys = document.querySelectorAll('.key');
+keys.forEach(key => {
+  key.addEventListener('transitionend', function(e) {
+    if(e.propertyName == 'transform')
+      this.classList.remove('playing');
+  })
+  key.addEventListener('click', function(e) {
+    playAudio(this.dataset.key)
+  })
+})
+window.addEventListener('keydown', e => {
+  playAudio(e.keyCode)
+});
 </script>
 
 
diff --git a/02 - JS and CSS Clock/index-START.html b/02 - JS and CSS Clock/index-START.html
index ee7eaefb1f..22c0879fac 100644
--- a/02 - JS and CSS Clock/index-START.html	
+++ b/02 - JS and CSS Clock/index-START.html	
@@ -9,8 +9,8 @@
 
     <div class="clock">
       <div class="clock-face">
-        <div class="hand hour-hand"></div>
-        <div class="hand min-hand"></div>
+        <div class="hand hour-hand no-transition"></div>
+        <div class="hand min-hand no-transition"></div>
         <div class="hand second-hand"></div>
       </div>
     </div>
@@ -62,12 +62,57 @@
       background:black;
       position: absolute;
       top:50%;
+      transform-origin: 100%;
+      transform:rotate(90deg);
+      transition: all 0.5s;
+      transition-timing-function: cubic-bezier(0.04, 1.77, 0.32, 0.94);
+    }
+    hand.no-transition {
+      transition:none;
     }
-
   </style>
 
   <script>
+    const hourhand = document.querySelector('.hour-hand')
+    const minutehand = document.querySelector('.min-hand')
+    const secondhand = document.querySelector('.second-hand')
+
+    function setHands(h,m,s){
+      secondhand.style.transform = `rotate(${s/60 * 360 + 90}deg)`;
+      minutehand.style.transform = `rotate(${m/60 * 360 + 90}deg)`;
+      hourhand.style.transform = `rotate(${h/12 * 360 + 90}deg)`;
+
+      console.log(s, `rotate(${s/60 * 360 + 90}deg)`)
+    }
+
+    function setTime() {
+      const now = new Date();
+      let seconds = now.getSeconds();
+      const minutes = now.getMinutes();
+      const hours = now.getHours();
+
+      //fix the weird slide transition from 359degrees -> 0degrees
+      if(seconds === 0){
+        seconds = 60;
+      }
+
+      setHands(hours,minutes,seconds)
+
+      //tried, doesn't work.. still animates
+      if(seconds === 60){
+        console.log('add class')
+        secondhand.style.transition = 'all 0s';
+        setHands(hours,minutes,0)
+        console.log('remove class')
+        secondhand.style.transition = 'all 0.5s';
+        // window.setTimeout( () => {
+        //   // secondhand.classList.remove('no-transition')
+        // }, 0)
+      }
+    }
 
+    setTime();
+    window.setInterval(setTime, 1000);
 
   </script>
 </body>
diff --git a/03 - CSS Variables/index-START.html b/03 - CSS Variables/index-START.html
index 8a4f0d556e..6658df8f40 100644
--- a/03 - CSS Variables/index-START.html	
+++ b/03 - CSS Variables/index-START.html	
@@ -25,6 +25,21 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
     /*
       misc styles, nothing to do with CSS variables
     */
+    :root{
+      --spacing: 10px;
+      --blur: 10px;
+      --base: #ffc600;
+    }
+
+    .hl {
+      color: var(--base);
+    }
+
+    img {
+      padding: var(--spacing);
+      background: var(--base);
+      filter: blur(var(--blur));
+    }
 
     body {
       text-align: center;
@@ -45,6 +60,20 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
   </style>
 
   <script>
+    document.querySelectorAll('.controls input').forEach(input => {
+      input.addEventListener("change", updateHandler)
+      input.addEventListener("mousedown", e => {
+        // assign single event handler on mousedown
+        input.onmousemove = updateHandler
+      })
+      // remove single event handler on mouseup
+      input.addEventListener("mouseup",  e => (input.onmousemove = null));
+    })
+
+    function updateHandler() {
+      // set the CSS variable on root to watch inherited properties cascade!
+      document.documentElement.style.setProperty(`--${this.name}`, this.value + (this.dataset.sizing || '' ));
+    }
   </script>
 
 </body>
diff --git a/04 - Array Cardio Day 1/index-START.html b/04 - Array Cardio Day 1/index-START.html
index eec0ffc31d..331770a7fd 100644
--- a/04 - Array Cardio Day 1/index-START.html	
+++ b/04 - Array Cardio Day 1/index-START.html	
@@ -29,30 +29,47 @@
 
     const people = ['Beck, Glenn', 'Becker, Carl', 'Beckett, Samuel', 'Beddoes, Mick', 'Beecher, Henry', 'Beethoven, Ludwig', 'Begin, Menachem', 'Belloc, Hilaire', 'Bellow, Saul', 'Benchley, Robert', 'Benenson, Peter', 'Ben-Gurion, David', 'Benjamin, Walter', 'Benn, Tony', 'Bennington, Chester', 'Benson, Leana', 'Bent, Silas', 'Bentsen, Lloyd', 'Berger, Ric', 'Bergman, Ingmar', 'Berio, Luciano', 'Berle, Milton', 'Berlin, Irving', 'Berne, Eric', 'Bernhard, Sandra', 'Berra, Yogi', 'Berry, Halle', 'Berry, Wendell', 'Bethea, Erin', 'Bevan, Aneurin', 'Bevel, Ken', 'Biden, Joseph', 'Bierce, Ambrose', 'Biko, Steve', 'Billings, Josh', 'Biondo, Frank', 'Birrell, Augustine', 'Black, Elk', 'Blair, Robert', 'Blair, Tony', 'Blake, William'];
 
+    let answers = [];
+
     // Array.prototype.filter()
     // 1. Filter the list of inventors for those who were born in the 1500's
-
+    answers[1] = inventors.filter(p => p.year >= 1500 && p.year <= 1599)
     // Array.prototype.map()
     // 2. Give us an array of the inventors' first and last names
-
+    answers[2] = inventors.map(p => `${p.first} ${p.last}`)
     // Array.prototype.sort()
     // 3. Sort the inventors by birthdate, oldest to youngest
+    answers[3] = inventors.sort((a,b) => a.year > b.year ? 1 : -1)
 
     // Array.prototype.reduce()
     // 4. How many years did all the inventors live?
+    answers[4] = inventors.reduce((total, p) => total + p.passed - p.year, 0)
 
     // 5. Sort the inventors by years lived
+    answers[5] = inventors.sort((a,b) => a.passed - a.year > b.passed - b.year ? 1 : -1)
+    // add the years to the objects
+    // answers[5] = answers[5].map(p => {p.years = p.passed - p.year; return p})
 
     // 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
-
+    answers[7] = people.sort((a,b) => a.split(', ')[0] > b.split(', ') [0] ? 1 : -1)
     // 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' ];
+    answers[8] = data.reduce((result, dat) => {
+      //add one or initialize to one if undefined+1 == NaN
+      result[dat] = result[dat] + 1 || 1;
+      return result;
+    }, {})
 
   </script>
 </body>
diff --git a/05 - Flex Panel Gallery/index-START.html b/05 - Flex Panel Gallery/index-START.html
index c6509bed02..7752e6d502 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;
+      display:flex;
+      flex:1;
+      flex-direction: column;
+      align-items: center;
+      justify-content: center;
     }
 
 
@@ -54,8 +60,21 @@
       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 > *:last-child{
+      transform: translateY(100%);
+    }
+    .panel.open-active > *:first-child, .panel.open-active > *:last-child {
+      transform: translateY(0);
+    }
     .panel p {
       text-transform: uppercase;
       font-family: 'Amatic SC', cursive;
@@ -68,6 +87,7 @@
 
     .panel.open {
       font-size:40px;
+      flex:5;
     }
 
   </style>
@@ -102,7 +122,20 @@
   </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);
+      panel.addEventListener('transitionend', toggleActive);
+    })
   </script>
 
 
diff --git a/06 - Type Ahead/index-START.html b/06 - Type Ahead/index-START.html
index 1436886918..0c89fd442c 100644
--- a/06 - Type Ahead/index-START.html	
+++ b/06 - Type Ahead/index-START.html	
@@ -14,8 +14,39 @@
       <li>or a state</li>
     </ul>
   </form>
+
 <script>
-const endpoint = 'https://gist.githubusercontent.com/Miserlou/c5cd8364bf9b2420bb29/raw/2bf258763cdddd704f8ffd3ea9a3e81d25e2c6f6/cities.json';
+  const endpoint = 'https://gist.githubusercontent.com/Miserlou/c5cd8364bf9b2420bb29/raw/2bf258763cdddd704f8ffd3ea9a3e81d25e2c6f6/cities.json';
+  const data = [];
+  fetch(endpoint).then(blob => blob.json())
+  .then(json => {
+    data.push(...json)
+  })
+
+  const input = document.querySelector('.search');
+  const output = document.querySelector('.suggestions');
+  input.addEventListener('change', onChange)
+  input.addEventListener('keyup', onChange)
+
+  function onChange(e){
+    const regex = new RegExp(this.value, 'gi')
+    const html = data.reduce( (html, place) => {
+      if(place.city.match(regex) || place.state.match(regex)) {
+        const cityMatch = place.city.replace(regex, `<span class="hl">${this.value}</span>`)
+        const stateMatch = place.state.replace(regex, `<span class="hl">${this.value}</span>`);
+        html +=  `
+      <li>
+        <span class="name">${cityMatch}, ${stateMatch}</span>
+        <span class="population">${Number(place.population).toLocaleString('en')}</span>
+      </li>`
+      }
+
+      return html
+    }, '')
+    output.innerHTML = html;
+  }
+
+
 
 </script>
   </body>
diff --git a/07 - Array Cardio Day 2/index-START.html b/07 - Array Cardio Day 2/index-START.html
index 969566ff78..37bc0af732 100644
--- a/07 - Array Cardio Day 2/index-START.html	
+++ b/07 - Array Cardio Day 2/index-START.html	
@@ -27,14 +27,21 @@
     // Some and Every Checks
     // Array.prototype.some() // is at least one person 19 or older?
     // Array.prototype.every() // is everyone 19 or older?
+    console.log("some over 19?", people.some(person => (new Date()).getFullYear() - person.year >= 19))
+    console.log("all over 19?", people.every(person => (new Date()).getFullYear() - person.year >= 19))
 
     // 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
 
+    console.log("comment#823423", comments.find(obj => obj.id === 823423))
+
     // Array.prototype.findIndex()
     // Find the comment with this ID
     // delete the comment with the ID of 823423
+    let index = comments.findIndex(obj => obj.id === 823423)
+    comments.splice(index, 1)
+    console.log("index of comment#823423",index, comments)
 
   </script>
 </body>
diff --git a/08 - Fun with HTML5 Canvas/index-START.html b/08 - Fun with HTML5 Canvas/index-START.html
index 37c148df07..e5d6b67f63 100644
--- a/08 - Fun with HTML5 Canvas/index-START.html	
+++ b/08 - Fun with HTML5 Canvas/index-START.html	
@@ -5,13 +5,61 @@
   <title>HTML5 Canvas</title>
 </head>
 <body>
-<canvas id="draw" width="800" height="800"></canvas>
+  <h3>CanvasPad</h3>
+<canvas id="draw" width="800" height="600"></canvas>
 <script>
+  const canvas = document.querySelector('canvas');
+  const ctx = canvas.getContext('2d');
+
+  ctx.width = window.innerWidth;
+  ctx.height = window.innerHeight;
+  ctx.strokeStyle = '#BADA55';
+  ctx.lineWidth = 50;
+  ctx.lineJoin = 'round';
+  ctx.lineCap = 'round';
+  let lastX=0, lastY=0;
+  let color = 0;
+  let dampvelocity = 0;
+
+  function distance(pt1, pt2){
+    console.log(pt1,pt2)
+    return Math.sqrt(Math.pow(pt2[0] - pt1[0], 2) + Math.pow(pt2[1] - pt1[1], 2))
+  }
+
+  function draw(e) {
+    dampvelocity = (dampvelocity*2 + distance([lastX, lastY], [e.offsetX, e.offsetY])) / 3;
+    ctx.strokeStyle = `hsl(${dampvelocity*2 + 90}, 100%, 50%)`;
+    ctx.lineWidth = 2 + dampvelocity*2;
+    console.log(dampvelocity)
+
+    ctx.beginPath();
+    ctx.moveTo(lastX, lastY)
+    ctx.lineTo(e.offsetX, e.offsetY)
+    ctx.stroke();
+
+    [lastX, lastY] = [e.offsetX, e.offsetY];
+  }
+
+  canvas.addEventListener('mousedown', e => {
+    [lastX, lastY] = [e.offsetX, e.offsetY]
+    canvas.addEventListener('mousemove', draw);
+  });
+  canvas.addEventListener('mouseup', e => {
+    canvas.removeEventListener('mousemove', draw)
+  });
+  canvas.addEventListener('mouseout', e => {
+    canvas.removeEventListener('mousemove', draw)
+  });
 </script>
 
 <style>
   html, body {
     margin:0;
+    padding:10px;
+    text-align: center;
+  }
+  canvas {
+    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16), 0 3px 6px rgba(0, 0, 0, 0.23);
   }
 </style>
 
diff --git a/09 - Dev Tools Domination/index-START.html b/09 - Dev Tools Domination/index-START.html
index 196fffd719..96772b5046 100644
--- a/09 - Dev Tools Domination/index-START.html	
+++ b/09 - Dev Tools Domination/index-START.html	
@@ -17,29 +17,72 @@
       p.style.fontSize = '50px';
     }
 
-    // Regular
-
-    // Interpolated
-
-    // Styled
-
-    // warning!
-
-    // Error :|
-
-    // Info
-
-    // Testing
-
-    // clearing
-
-    // Viewing DOM Elements
-
-    // Grouping together
-
-    // counting
-
-    // timing
+ // Regular
+ console.log('hello');
+
+// Interpolated
+console.log('Hello I am a %s string!', '💩');
+
+// Styled
+console.log('%c I am some great text', 'font-size:50px; background:red; text-shadow: 10px 10px 0 blue')
+
+// warning!
+console.warn('OH NOOO');
+
+// Error :|
+console.error('Shit!');
+
+// Info
+console.info('Crocodiles eat 3-4 people per year');
+
+// Testing
+const p = document.querySelector('p');
+
+console.assert(p.classList.contains('ouch'), 'That is wrong!');
+
+// clearing
+console.clear();
+
+// Viewing DOM Elements
+console.log(p);
+console.dir(p);
+
+console.clear();
+
+// Grouping together
+dogs.forEach(dog => {
+  console.groupCollapsed(`${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('Wes');
+console.count('Wes');
+console.count('Steve');
+console.count('Steve');
+console.count('Wes');
+console.count('Steve');
+console.count('Wes');
+console.count('Steve');
+console.count('Steve');
+console.count('Steve');
+console.count('Steve');
+console.count('Steve');
+
+// timing
+console.time('fetching data');
+fetch('https://api.github.com/users/wesbos')
+  .then(data => data.json())
+  .then(data => {
+    console.timeEnd('fetching data');
+    console.log(data);
+  });
+
+console.table(dogs);
 
   </script>
 </body>
diff --git a/10 - Hold Shift and Check Checkboxes/index-START.html b/10 - Hold Shift and Check Checkboxes/index-START.html
index a02071ff00..ef69c2b32a 100644
--- a/10 - Hold Shift and Check Checkboxes/index-START.html	
+++ b/10 - Hold Shift and Check Checkboxes/index-START.html	
@@ -99,6 +99,59 @@
   </div>
 
 <script>
+  const checkboxes = [...document.querySelectorAll('input')];
+  checkboxes.forEach(box => {
+    box.addEventListener('click', handleClick)
+  })
+
+  //Index based approach
+  // let lastIndex = 0;
+  // function selectBetween(newIndex) {
+  //   let start = newIndex > lastIndex ? lastIndex : newIndex;
+  //   let end = newIndex < lastIndex ? lastIndex : newIndex;
+  //   checkboxes.forEach( (box, index) => {
+  //     if (index > start && index < end) {
+  //       box.checked = true
+  //     }
+  //   })
+  // }
+
+  // function handleClick (e) {
+  //   const index = checkboxes.indexOf(this);
+  //   console.log("with Shift pressed?", e.shiftKey)
+  //   if(this.checked) {
+  //     if(e.shiftKey) {
+  //       selectBetween(index);
+  //     }
+  //     lastIndex = index;
+  //   }
+  // }
+
+  // Object based approach
+  let lastChecked = null;
+
+  function handleClick (e) {
+    // Check if the box was checked true first.
+    if(this.checked) {
+      //If they're holding the shift key AND there is a saved last checked box
+      if(e.shiftKey && lastChecked) {
+        let inbetween = false;
+        checkboxes.forEach(box => {
+          if(box === this || box === lastChecked){
+            inbetween = !inbetween;
+          }
+          if(inbetween){
+            box.checked = true;
+          }
+        })
+      }
+      lastChecked = this;
+    }
+    //If UNchecked, then don't save it's position for the next click.
+    else{
+      lastChecked = null;
+    }
+  }
 </script>
 </body>
 </html>