moving out outdated js docs
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olddocs/js/lessons/looper/challenges.md
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olddocs/js/lessons/looper/challenges.md
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# looper challenges
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Coding challenges for the looper tutorial. #docs
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## Before we get started
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Complete the following guided tutorial:
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* [tutorial](/lessons/looper/tutorial)
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At the end of the tutorial, click `keep editing`. Your code should look like this:
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```
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for (let i = 0; i < 6; i++) {
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basic.showNumber(i, 150)
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basic.pause(2000)
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}
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```
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### Challenge 1
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### @video td/videos/looper-1
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What if we want to count up to lucky number 7 instead? Let's do that by changing the ending value to `8` instead of `6`.
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```
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for (let i1 = 0; i1 < 8; i1++) {
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basic.showNumber(i1, 150) // ***
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basic.pause(2000)
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}
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```
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* Run the program now to see your changes.
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### Challenge 2
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### @video td/videos/looper-2
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What about 9? Let's do that by changing the ending value to `10`.
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```
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for (let i2 = 0; i2 < 10; i2++) {
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basic.showNumber(i2, 150)
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basic.pause(2000)
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}
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```
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* Run your code to see the new counter.
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### Challenge 3
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### @video td/videos/looper-3
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Now let's start counting from `3` instead! Our for loop will always start at `0` so we simply add `3` to the `i` variable when passing it to `basic->show number`.
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```
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for (let i3 = 0; i3 < 8; i3++) {
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basic.showNumber(i3 + 3, 150) // ***
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basic.pause(2000)
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}
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```
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Run it on the simulator!
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### Challenge 4
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### @video td/videos/looper-4
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Now, let's **count down from 9**. Change the line `basic->show number(i + 3, 150)` to `basic->show number(9 - i, 150)`.
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```
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for (let i4 = 0; i4 < 10; i4++) {
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basic.showNumber(9 - i4, 150) // ***
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basic.pause(2000)
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}
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```
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* Run the code to make sure it is doing what is expected.
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### Challenge 5
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After counting down from `9` let's show the string `BOOOM`!
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olddocs/js/lessons/looper/lesson.md
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olddocs/js/lessons/looper/lesson.md
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# looper lesson
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Learn to control blinking LEDs.
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### @video vimeo/134453504
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## Topic
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For loop - Blinking LED
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## Quick links
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* [tutorial](/lessons/looper/tutorial)
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* [quiz](/lessons/looper/quiz)
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* [quiz answers](/lessons/looper/quiz-answers)
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* [challenges](/lessons/looper/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 control a blinking LED. We will be learning how to create a blinking app using the for loop as well as simple commands, such as plot and pause.
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## What the teacher needs to know
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**Program:** A stored set of instructions encoded in a language understood by the computer that does some form of computation, processing input and/or stored data to generate output.**
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**Algorithm:** An unambiguous set of rules or a precise step-by-step guide to solve a problem or achieve a particular objective. The guided tutorial follows a algorithm and is a precise step-by-step guide to solve a problem**
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**Loop:** A block of code repeated automatically under the program’s control. ** The blink program introduces a While Loop. While Loop is a while loop that will repeat code forever while - true.
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**Command:** An instruction for the computer to execute, written in a particular programming language.**
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**QuickStart Computing Glossary
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## Documentation
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* **plot**: [read more...](/reference/led/plot)
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* **pause**: [read more...](/reference/basic/pause)
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* **for**: [read more...](/reference/loops/for)
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## Resources
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* Activity: [tutorial](/lessons/looper/tutorial)
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* Activity: [quiz](/lessons/looper/quiz)
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* Extended Activity: [challenges](/lessons/looper/challenges)
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## Objectives
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* learn how to blink a light
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* create a for loop that will loop through each x-value, y-value from 0 to 4.
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* learn how to pause the light on and off
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* learn how to repeat turning on and off the light
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## Links to the National Curriculum Programmes of Study for Computing
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## Progression Pathways / Computational Thinking Framework
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#### Algorithms
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* Uses logical reasoning to predict outputs, showing an awareness of inputs. (AL)
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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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* 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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#### 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: 10 min.
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* [tutorial](/lessons/looper/tutorial)
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* [quiz](/lessons/looper/quiz)
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* assessment opportunities: loops, plot, pause, clear screen
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## Extended Activity
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* time: 20 min.
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* [challenges](/lessons/looper/challenges)
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* assessment opportunities: loops, plot, pause, clear screen
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## Homework
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* Extended Activity: [challenges](/lessons/looper/challenges)
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## Intended follow on
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Publish script to the classroom.
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