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olddocs/js/lessons/line-of-fire.md

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+# line of fire lesson
+
+create a game that relies on precise instincts and timing reflexes #if #.
+
+### @video td/videos/timing-game-0
+
+## Topic
+
+Functions
+
+## Quick Links
+
+* [tutorial](/lessons/line-of-fire/tutorial)
+* [quiz](/lessons/line-of-fire/quiz)
+* [quiz answers](/lessons/line-of-fire/quiz-answers)
+
+## Class
+
+Year 7
+
+## Prior learning/place of lesson in scheme of work
+
+Learn how to create **functions**, `function()` that perform a specific task and returns a result. We will be learning how to create a pong game using functions, global variable forever loop, global variables, Boolean, for loop, input on button pressed, if statements, as well as simple commands, such as plot, unplot and pause.
+
+## Documentation
+
+* **function** : [read more...](/js/function)
+* **return** : [read more...](/js/return)
+* **call** : [read more...](/js/call)
+* **global variable** : [read more...](/js/data)
+* **arithmetic operator** : [read more...](/reference/types/number)
+* **Boolean** : [read more...](/reference/types/boolean)
+* **forever** : [read more...](/reference/basic/forever)
+* **on button pressed** : [read more...](/reference/input/on-button-pressed)
+* **if** : [read more...](/reference/logic/if)
+* **clear screen** : [read more...](/reference/basic/clear-screen)
+* **show string** : [read more...](/reference/basic/show-string)
+* **plot** : [read more...](/reference/led/plot)
+* **unplot** : [read more...](/reference/led/unplot)
+* **pause** : [read more...](/reference/basic/pause)
+
+## Objectives
+
+* learn how to create a function as a unit of code that performs a specific task and returns a result
+* learn how a return statement exits a function and returns a value to the code
+* learn how to call an existing function in your script
+* learn how to create a global variable as a place where you can store data so that you can use it later in your code, accessible across functions and in nested code blocks
+* learn how arithmetic operators operate on numbers and return a number
+* learn how a Boolean type has one of two possible values: true or false
+* learn how to repeat code in the background forever
+* learn how to conditionally run code depending on whether a condition is true or not
+* learn how to run code when an input button is pressed
+* learn how to show a string on the micro:bit's LED screen
+* learn how to turn on a LED light on the LED screen. Learn how to specify which LED using x, y coordinates
+* learn how to turn off a LED light on the LED screen. Learn how to specify which LED using x, y coordinates
+* learn how to pause your code for the specified number of milliseconds
+
+## Progression Pathways / Computational Thinking Framework
+
+#### Algorithms
+
+* Designs solutions (algorithms) that use repetition and two-way  selection, ie if, then and else.(AL)
+* Uses diagrams to express solutions.(AB)
+*  Uses logical reasoning to predict  outputs, showing an awareness of inputs (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)
+* Uses post-tested loop e.g.‘until’,and a sequence of selection statements in programs,including an if,then and else statement(AL)
+* Understands the difference between, and appropriately uses if and if, then and else statements(AL)
+* Uses a variable and relational operators within a loop to govern termination (AL) (GE)
+* Uses a range of operators and expressions e.g. Boolean, and applies them in the context of program control. (AL)
+* Selects the appropriate data types(AL) (AB
+
+#### Data & Data Representation
+
+* Defines data types: real numbers and Boolean (AB)
+
+Computational Thinking Concept: AB = Abstraction; DE = Decomposition; AL = Algorithmic Thinking; EV = Evaluation; GE = Generalisation
+
+## Activity
+
+* time: 20 min.
+* [tutorial](/lessons/line-of-fire/tutorial)
+
+## Extended Activity
+
+* time: 20 min.
+* [quiz](/lessons/line-of-fire/quiz)
+
+## Homework
+
+* Extended Activity: [quiz](/lessons/line-of-fire/quiz)
+