updated lessons

docs/lessons/rotation-animation/quiz-answers.md

@@ -4,34 +4,50 @@ Learn how to create a rotating image with a while loop. #image #loop  #while #do
 
 This is the answer key for the [rotation animation quiz](/microbit/lessons/rotation-animation/quiz).
 
-## 1. What is a "global variable"?
+## 1. What is a " variable"?
 
-Answers may vary. A global variable is a place where you can store data so that you can use it later in your code.
+Answers may vary. A variable is a place where you can store data so that you can use it later in your code.
 
-## 2. Consider the following directions
+## 2. Write the code to create a ** variable** called `foo` that stores a boolean and initialize it to **false**.
 
-Write the code to create a **global variable** called `foo` that stores a boolean and initialize it to **false**.
 
-```
-rotating = true
+
+```blocks
+let rotating = true;
 ```
 
-## 3. Consider the following code
+## 3. Explain what this line of code does.
 
-```
+```blocks
+let rotating = true;
 while (rotating) {
+    basic.showLeds(`
+        . . . . .
+        . . . . .
+        . . # . .
+        . . . . .
+        . . . . .
+        `)
+    basic.showLeds(`
+        . . . . .
+        . . . . .
+        . . . . .
+        . . . . .
+        . . . . .
+        `)
 }
+
 ```
 
-Explain what this line of code does.
+
 
 <br/>
 
-It is a **while** loop that will be executed only if the **global variable** called `rotating` is **true**.
+It is a **while** loop that will be executed only if the ** variable** called `rotating` is **true**.
 
-## 4. Consider the following code
+## 4. If the rectangle below represents the BBC micro:bit, shade the areas that will be displayed. Explain why that particular area is shaded.
 
-```
+```blocks
 basic.showAnimation(`
 # . . . . . . # . . . . . . # . . . . .
 . # . . . . . # . . . . . # . . . . . .
@@ -41,7 +57,7 @@ basic.showAnimation(`
 `, 400)
 ```
 
-If the rectangle below represents the BBC micro:bit, shade the areas that will be displayed. Explain why that particular area is shaded.
+
 
 ![](/static/mb/lessons/rotation-animation-0.png)
 

docs/lessons/rotation-animation/quiz.md

@@ -10,26 +10,42 @@ Use this activity document to guide your work in the [rotation animation tutoria
 
 Answer the questions while completing the tutorial. Pay attention to the dialogues!
 
-## 1. What is a "global variable"?
+## 1. What is a " variable"?
 
 <br />
 
-## 2. Write the code to create a global variable called foo that stores a boolean and initialize it to false.
+## 2. Write the code to create a variable called foo that stores a boolean and initialize it to false.
 
 <br/>
 
-## 3. Explain why you use a while loop with a global variable
+## 3. Explain why you use a while loop with a variable
 
-```
+```blocks
+let rotating = true;
 while (rotating) {
+    basic.showLeds(`
+        . . . . .
+        . . . . .
+        . . # . .
+        . . . . .
+        . . . . .
+        `)
+    basic.showLeds(`
+        . . . . .
+        . . . . .
+        . . . . .
+        . . . . .
+        . . . . .
+        `)
 }
+
 ```
 
 <br/>
 
 ## 4. Draw the areas on the micro:bits to illustrate the code below. Explain why you chose to draw in those areas.
 
-```
+```blocks
 basic.showAnimation(`
 # . . . . . . # . . . . . . # . . . . .
 . # . . . . . # . . . . . # . . . . . .