2016-03-26 00:47:20 +01:00
# rotation animation lesson
2016-04-02 01:22:47 +02:00
Learn how to create images with a global variable and while loop.
2016-03-26 00:47:20 +01:00
## Topic
While Loop
## Quick links
* [tutorial ](/microbit/lessons/rotation-animation/tutorial )
* [quiz ](/microbit/lessons/rotation-animation/quiz )
* [quiz answers ](/microbit/lessons/rotation-animation/quiz-answers )
* [challenges ](/microbit/lessons/rotation-animation/challenges )
## Class
Year 7
## 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
* **global variable**: [read more... ](/microbit/js/data )
* **assignment operator**: [read more... ](/microbit/reference/variables/assign )
* **while**: [read more... ](/microbit/js/while )
* **Boolean condition (for the while loop)** : [read more... ](/microbit/reference/types/boolean )
* **on button pressed**: [read more... ](/microbit/reference/input/on-button-pressed )
* **show animation**: [read more... ](/microbit/reference/basic/show-animation )
* **pause**: [read more... ](/microbit/reference/basic/pause )
## Objectives
* learn how to create a global 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 global variable
* learn how to repeat code while a condition is true
* learn how to declare a global 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
## Progression Pathways / Computational Thinking Framework
#### Algorithms
* Understands that iteration is the repetition of a process such as a loop. (AL)
* Represents solutions using a structured notation. (AL) (AB)
#### Programming & Development
* Creates programs that implement algorithms to achieve given goals. (AL)
* Declares and assigns variables.(AB)
#### Data & Data Representation
* Understands the difference between data and information. (AB)
* Defines data types: real numbers and Boolean. (AB)
#### Information Technology
* Collects, organises and presents data and information in digital content. (AB)
* Makes appropriate improvements to solutions based on feedback received, and can comment on the success of the solution. (EV)
Computational Thinking Concept: AB = Abstraction; DE = Decomposition; AL = Algorithmic Thinking; EV = Evaluation; GE = Generalisation
## Activity
* time: 20 min.
* [tutorial ](/microbit/lessons/rotation-animation/tutorial )
* [quiz ](/microbit/lessons/rotation-animation/quiz )
## Extended Activity
* time: 20 min.
* [challenges ](/microbit/lessons/rotation-animation/challenges )
## Homework
* Extended Activity: [challenges ](/microbit/lessons/rotation-animation/challenges )
