107 lines
4.4 KiB
Markdown
107 lines
4.4 KiB
Markdown
# jailbreak lesson
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Break out of a counting loop by pressing button "A".
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## Topic
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Break
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## Quick Links
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* [tutorial](/lessons/jailbreak/tutorial)
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* [quiz](/lessons/jailbreak/quiz)
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* [quiz answers](/lessons/jailbreak/quiz-answers)
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* [challenges](/lessons/jailbreak/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 create a **break**, `break` to exit a while or for loop before the loop is complete. We will be learning how to create a break using global variables, Boolean, If (conditionals), a While Loop as well as simple commands, such as show string, plot image, show number, and pause.
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## Documentation
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* **Global Variable** : [read more...](/js/data)
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* **Boolean** : [read more...](/reference/types/boolean)
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* **On Button Pressed** : [read more...](/reference/input/on-button-pressed)
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* **While Loop** : [read more...](/js/while)
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* **Break** : [read more...](/js/break)
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* **If (Conditional)** : [read more...](/reference/logic/if)
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* **Show String** : [read more...](/reference/basic/show-string)
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* **Plot Image ** : [read more...](/reference/led/plot-image)
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* **Show Number** : [read more...](/reference/basic/show-number)
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* **Pause** : [read more...](/reference/basic/pause)
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## Objectives
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* learn how to create global variables to store data so that you can use it later in your code, functions, and in nested code blocks
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* learn how to use the variables to declare a new local Boolean variable that will have one of two possible values: true or false
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* learn how to run code when an input button is pressed
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* learn how to repeat code while a condition is true
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* learn how to exit a while loop before the loop is complete
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* learn how to conditionally run code depending on whether a condition is true or not
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* learn how to show a string on the LED screen one character at a time
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* learn how to turn on LED lights on the LED screen
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* learn how to show a number on the LED screen, one digit at a time
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* learn how to pause your code for the specified number of milliseconds
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## Progression Pathways / Computational Thinking Framework
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#### Algorithms
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* Designs solutions (algorithms) that use repetition and two-way selection, ie if, then and else.(AL)
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* Uses diagrams to express solutions.(AB)
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* Uses logical reasoning to predict outputs, showing an awareness of inputs (AL)
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* Recognises that different solutions exist for the same problem (AL) (AB) Understands that iteration is the repetition of a process such as a loop (AL)
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* Recognises that different algorithms exist for the same problem (AL) (GE)
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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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* Uses post-tested loop e.g.‘until’,and a sequence of selection statements in programs,including an if,then and else statement(AL)
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* Understands the difference between, and appropriately uses if and if, then and else statements(AL)
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* Uses a variable and relational operators within a loop to govern termination (AL) (GE)
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* Uses a range of operators and expressions e.g. Boolean, and applies them in the context of program control. (AL)
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* Selects the appropriate data types(AL) (AB
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#### Data & Data Representation
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* Performs more complex searches for information e.g. using Boolean and relational operators(AL) (GE) (EV)
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* Defines data types: real numbers and Boolean (AB)
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#### Hardware & Processing
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* Knows that computers collect data from various input devices, including sensors and application software (AB)
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#### Communication Networks
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* Demonstrates responsible use of technologies and online services, and knows a range of ways to report concerns Understands how search engines rank search results (AL)
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#### Information Technology
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* Collects, organizes, 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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* Recognises ethical issues surrounding the application of information technology beyond school.
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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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* [tutorial](/lessons/jailbreak/tutorial)
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* [quiz](/lessons/jailbreak/quiz)
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## Extended Activity
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* time: 20 min.
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* [challenges](/lessons/jailbreak/challenges)
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## Homework
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* Extended Activity: [challenges](/lessons/jailbreak/challenges)
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