put lessons back for Michael

docs/lessons/rotation-animation.md

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+# rotation animation block lesson
+
+Learn how to create images with a global variable and while loop.
+
+## Topic
+
+While Loop
+
+## Quick links
+
+* [activity](/lessons/rotation-animation/activity)
+* [challenges](/lessons/rotation-animation/challenges)
+* [quiz](/lessons/rotation-animation/quiz)
+* [quiz answers](/lessons/rotation-animation/quiz-answers)
+
+## Prior learning/place of lesson in scheme of work
+
+Learn how to create images that look like a rotating animation by using a while loop. We will be learning how to create a rotating animation using a global variable, while loop as well as simple commands, such as on button pressed and show animation.
+
+## Documentation
+
+```cards
+while (true) {}
+let x = 0
+input.onButtonPressed(Button.A, () => {})
+basic.showLeds(`
+    . . . . .
+    . . . . .
+    . . # . .
+    . . . . .
+    . . . . .
+    `)
+basic.pause(100)
+```
+
+## Objectives
+
+* learn how to create a variable for a place where you can store data, accessible across functions, and in nested code blocks
+* learn how to set or change the value of a  variable
+* learn how to repeat code while a condition is true
+* learn how to declare a boolean variable to determine which code will execute next
+* learn how to run code when an input button is pressed
+* learn how to show a series of image frames on the LED screen
+* learn how to pause your code for the specified number of milliseconds
+