moving out outdated js docs

olddocs/js/lessons/flipping-bird/challenges.md

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+# flipping bird challenges
+
+Coding challenges for flipping bird. #docs
+
+## Before we get started
+
+Complete the following guided tutorial:
+
+* [tutorial](/lessons/flipping-bird/tutorial)
+
+At the end of the tutorial, click `keep editing`. Your code should look like this:
+
+```
+counter = 0
+input.onGesture(Gesture.Shake, () => {
+    counter = counter + 1
+    if (math.mod(counter, 2) == 1) {
+        basic.plotImage(`
+# # . # #
+. . # . .
+. . . . .
+. . . . .
+. . . . .
+`)
+    }
+})
+```
+
+### Challenge 1
+
+We handled the case of when `math->mod(counter,2) = 1`. We haven't done anything when the remainder is 0! Add an if statement to handle this case.
+
+```
+counter = 0
+input.onGesture(Gesture.Shake, () => {
+    counter = counter + 1
+    if (math.mod(counter, 2) == 1) {
+        basic.plotImage(`
+# # . # #
+. . # . .
+. . . . .
+. . . . .
+. . . . .
+`)
+    }
+    if (math.mod(counter, 2) == 0) {
+    }
+})
+```
+
+### Challenge 2
+
+### @video td/videos/flipping-bird-2
+
+Inside of that `if` statement you created in challenge 1, add `basic->plot image()` and display an upside down flying bird.
+
+```
+counter = 0
+input.onGesture(Gesture.Shake, () => {
+    counter = counter + 1
+    if (math.mod(counter, 2) == 1) {
+        basic.plotImage(`
+# # . # #
+. . # . .
+. . . . .
+. . . . .
+. . . . .
+`)
+    }
+    if (math.mod(counter, 2) == 0) {
+        basic.plotImage(`
+. . . . .
+. . . . .
+. . . . .
+. . # . .
+# # . # #
+`) // ***
+    }
+})
+```
+
+* `Run` the code to see if it works as expected.
+
+**Challenge 3**
+
+Display a check mark and question mark instead of flipping birds. Or better yet, come up with your own pair of opposites to display!
+

olddocs/js/lessons/flipping-bird/quiz-answers.md

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+# flipping bird quiz answers
+
+use modulo with a conditional.
+
+This is the answer key for the [flipping bird quiz](/lessons/flipping-bird/quiz).
+
+## 1. What does "modulo" mean in math?
+
+<br/>
+
+Modulo (or Mod) is the remainder of a division problem.
+
+## 2. Consider the following code
+
+If the rectangle below represents the BBC micro:bit, shade in the LEDs that show the value being stored into  the **global variable**, `count`. Explain why that particular area is shaded.
+
+```
+count = 1
+count_ = count_ + 2
+```
+
+<br/>
+
+<br/>
+
+![](/static/mb/lessons/flipping-bird-0.png)
+
+The variable `count` is now equal to 3.
+
+<br/>
+
+## 3. Consider the following directions
+
+Modulo (Mod) tells us what the remainder of a division is. For example, `15 mod 4 is 3` since 15 divided by 4 has a remainder of 3.
+
+```
+count = 12
+count = math.mod(count, 5)
+```
+
+If the rectangle below represents the BBC micro:bit, shade in the LEDs that show the value being stored into  the **global variable**, `count`. Explain why that particular area is shaded.
+
+<br/>
+
+<br/>
+
+![](/static/mb/lessons/flipping-bird-1.png)
+
+The display will show `2` because the remainder of 12 divided by 5 is 2.
+

olddocs/js/lessons/flipping-bird/quiz.md

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+# flipping bird quiz 
+
+use modulo with a conditional.
+
+## Name
+
+## Directions
+
+Use this activity document to guide your work in the [flipping bird tutorial](/lessons/flipping-bird/tutorial).
+
+Answer the questions while completing the tutorial. Pay attention to the dialogues!
+
+## 1. What does "modulo" mean in math?
+
+## 2. Consider the following directions
+
+If the rectangle below represents the BBC micro:bit, shade in the LEDs that show the value being stored into  the **global variable**, `count`.
+
+```
+count = 1
+```
+
+![](/static/mb/empty-microbit.png)
+
+<br/>
+
+<br/>
+
+## 3. Consider the following code
+
+If the rectangle below represents the BBC micro:bit, shade in the LEDs that show the value being stored into  the **global variable**, `count`. Explain why that particular area is shaded.
+
+```
+count = 1
+count_ = count_ + 2
+```
+
+![](/static/mb/empty-microbit.png)
+
+<br/>
+
+<br/>
+
+## 4. Consider the following directions
+
+Modulo (Mod) tells us what the remainder of a division is. For example, `15 mod 4 is 3` since 15 divided by 4 has a remainder of 3.
+
+```
+count = 12
+count = math.mod(count, 5)
+```
+
+If the rectangle below represents the BBC micro:bit, shade in the LEDs that show the value being stored into  the **global variable**, `count`. Explain why that particular area is shaded.
+
+![](/static/mb/empty-microbit.png)
+
+<br/>
+
+<br/>
+