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docs/lessons/snowflake-fall/activity.md

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+# snowflake fall blocks activity
+
+design a blinking rectangle animation.
+
+### ~avatar avatar
+
+
+
+Welcome! This tutorial will teach how design a **snowfall animation**. Let's get started!
+
+### ~
+
+Let's start by creating a `forever` loop that will allow us to repeat the show LEDs code. Any code in the `forever` loop will repeat in the background... forever.
+
+
+```blocks
+basic.forever(() => {
+    basic.showLeds(`
+        . . . . .
+        . . # . .
+        . # # # .
+        . . # . .
+        . . . . .
+        `)
+    basic.showLeds(`
+        . . . . .
+        . . . . .
+        . . . . .
+        . . . . .
+        . . . . .
+        `)
+})
+```
+
+The next step is to add two `show LEDs` blocks inside the `forever` loop to repeat an animation.
+
+```blocks
+basic.forever(() => {
+    basic.showLeds(`
+        . . . . .
+        . . # . .
+        . # # # .
+        . . # . .
+        . . . . .
+        `)
+    basic.showLeds(`
+        . . # . .
+        . # . # .
+        # . . . #
+        . # . # .
+        . . # . .
+        `)
+})
+```
+
+Run your code in the simulator or download it to your BBC micro:bit to see what happens!
+
+### ~avatar avatar
+
+Excellent, you're ready to continue with the [challenges](/lessons/snowflake-fall/challenges)!
+
+### ~
+

docs/lessons/snowflake-fall/challenges.md

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+# snowflake fall blocks challenges
+
+Coding challenges for snowflake fall. 
+
+## Before we get started
+
+Complete the [snowflake fall](/lessons/snowflake-fall/activity) activity and your code will look like this:
+
+```blocks
+basic.forever(() => {
+    basic.showLeds(`
+        . . . . .
+        . . # . .
+        . # # # .
+        . . # . .
+        . . . . .
+        `)
+    basic.showLeds(`
+        . . # . .
+        . # . # .
+        # . . . #
+        . # . # .
+        . . # . .
+        `)
+})
+```
+
+### Challenge 1
+
+
+
+To finalize our snowflake fall, let's add a different snowflake pattern.
+
+```blocks
+
+basic.forever(() => {
+    basic.showLeds(`
+        . . . . .
+        . . # . .
+        . # # # .
+        . . # . .
+        . . . . .
+        `)
+    basic.showLeds(`
+        . . # . .
+        . # . # .
+        # . . . #
+        . # . # .
+        . . # . .
+        `)
+    basic.showLeds(`
+        . # . # .
+        # # # # #
+        . # . # .
+        # # # # #
+        . # . # .
+        `)
+})
+
+```
+
+
+* Run your program and see if it works.
+
+### Challenge 3
+
+Add a fourth frame to the current animation... or make it your own!
+

docs/lessons/snowflake-fall/quiz-answers.md

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+# snowflake fall blocks quiz answers
+
+Create a snowflake fall animation.  
+
+This is the answer key for the [snowflake fall quiz](/lessons/snowflake-fall/quiz).
+
+## 1. What is a forever loop?
+
+Run code in the background forever (answers may vary).
+
+## 2. Draw the picture that will be produced with this code
+
+```blocks
+basic.forever(() => {
+    basic.showLeds(`
+. # . # .
+# # # # #
+# # # # #
+. # # # .
+. . # . .`);
+});
+
+```
+
+![](/static/mb/lessons/flashing-heart-0.png)
+
+## 3.Write the code for a forever loop and show LEDS for these images!
+
+![](/static/mb/lessons/snowflake-fall-0.png)
+
+```blocks
+basic.forever(() => {
+    basic.showLeds(`
+        . . . . .
+        . . # . .
+        . # # # .
+        . . # . .
+        . . . . .
+        `);
+    basic.showLeds(`
+        . . . . .
+        . . . . .
+        . . . . .
+        . . . . .
+        . . . . .
+        `)
+});
+```
+
+## 4. Write the code for a forever loop and show LEDS for these images!
+
+![](/static/mb/lessons/snowflake-fall-1.png)
+
+![](/static/mb/lessons/snowflake-fall-2.png)
+
+```blocks
+basic.forever(() => {
+    basic.showLeds(`
+        . . . . .
+        . . # . .
+        . # # # .
+        . . # . .
+        . . . . .
+        `);
+    basic.showLeds(`
+        # # # # #
+        # # . # #
+        # . # . #
+        # # . # #
+        # # # # #
+        `)
+});
+```

docs/lessons/snowflake-fall/quiz.md

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+# snowflake fall blocks quiz
+
+Create a snowflake fall animation 
+
+## Name
+
+## Directions
+
+Use the hints in the [snowflake fall activity](/lessons/snowflake-fall/activity) to answer this quiz!
+
+## 1. What is a forever loop?
+
+
+
+## 2. Draw the picture that will be produced with this code
+
+```blocks
+basic.forever(() => {
+    basic.showLeds(`
+. # . # .
+# # # # #
+# # # # #
+. # # # .
+. . # . .`);
+});
+
+```
+
+![](/static/mb/empty-microbit.png)
+
+
+
+## 3. Write the code for a forever loop and show LEDS for these images!
+
+![](/static/mb/lessons/snowflake-fall-0.png)
+
+
+
+## 4. Write the code for a forever loop and show LEDS for these images!
+
+![](/static/mb/lessons/snowflake-fall-1.png)
+
+![](/static/mb/lessons/snowflake-fall-2.png)
+
+
+