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Michal Moskal
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# guess the number lesson
Learn to create a random number with input from button A. #input #screen #math #docs
### @video td/videos/guess-the-number-0
## Topic
Math - Pick Random
## Quick links
* [activity](/microbit/lessons/guess-the-number/activity)
* [challenges](/microbit/lessons/guess-the-number/challenges)
## Class
Year 7
## Prior learning/place of lesson in scheme of work
Learn how to create numbers randomly by using the input of the BBC micro:bit. We will be learning how to create random numbers with input using a local variable as well as simple commands, such as pick number and show number.
## Documentation
* **on button pressed**: [read more...](/microbit/reference/input/on-button-pressed)
* **local variable **: [read more...](/microbit/reference/variables/var)
* **assignment operator**: [read more...](/microbit/reference/variables/assign)
* **show number**: [read more...](/microbit/reference/basic/show-number)
* **pick number**: [read more...](/microbit/blocks/math)
* **clear screen**: [read more...](/microbit/reference/basic/clear-screen)
## Objectives
* learn how to run code when an input button is pressed
* learn how a variable is a place where you can store data
* learn how to set the value of a local variable
* learn how to returns a random number
* learn how to show a number on the LED screen, one digit at a time (scrolling left to right)
* learn how to turn off all the LED lights on the LED screen
## 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.
* [activity](/microbit/lessons/guess-the-number/activity)
## Extended Activity
* time: 20 min.
* [challenges](/microbit/lessons/guess-the-number/challenges)
## Homework
* Extended Activity: [challenges](/microbit/lessons/guess-the-number/challenges)