76 lines
2.4 KiB
Markdown
76 lines
2.4 KiB
Markdown
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# counter lesson
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Learn how to create a counter with with on button pressed. #show #number #screen #number #math #docs
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### @video td/videos/counter-0
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## Topic
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Variables
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## Quick Links
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* [activity](/microbit/lessons/counter/activity)
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* [challenges](/microbit/lessons/counter/challenges)
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## Class
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Year 7
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## Prior learning/place of lesson in scheme of work
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Learn how to creating a **variable** to keep track of the current count. We will be learning how to create a counter app using a variable as well as simple commands, such as on button pressed, and show number.
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## Documentation
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* **variable**: [read more...](/microbit/reference/variables/var)
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* **arithmetic operators**: [read more...](/microbit/reference/types/number)
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* **on button pressed** : [read more...](/microbit/reference/input/on-button-pressed)
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* **show number** : [read more...](/microbit/reference/basic/show-number)
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## Objectives
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* learn how to create a variable as a place where you can store data so that you can use it later in your code, accessible across all functions, and in nested code blocks
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* learn how arithmetic operators operate on numbers and return a number
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* learn how to run code when an input button is pressed
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* learn how to show a number on the LED screen, one digit at a time (scrolling from left to right)
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## Progression Pathways / Computational Thinking Framework
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#### Algorithms
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* Understands that iteration is the repetition of a process such as a loop. (AL)
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* Represents solutions using a structured notation. (AL) (AB)
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#### Programming & Development
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* Creates programs that implement algorithms to achieve given goals. (AL)
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* Declares and assigns variables.(AB)
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#### Data & Data Representation
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* Understands the difference between data and information. (AB)
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* Defines data types: real numbers and Boolean. (AB)
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#### Information Technology
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* Collects, organises and presents data and information in digital content. (AB)
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* Makes appropriate improvements to solutions based on feedback received, and can comment on the success of the solution. (EV)
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Computational Thinking Concept: AB = Abstraction; DE = Decomposition; AL = Algorithmic Thinking; EV = Evaluation; GE = Generalisation
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## Activity
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* time: 20 min.
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* [activity](/microbit/lessons/counter/activity)
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## Extended Activity
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* time: 20 min.
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* [challenges](/microbit/lessons/counter/challenges)
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## Homework
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* Extended Activity: [challenges](/microbit/lessons/counter/challenges)
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