119 lines
6.1 KiB
Markdown
119 lines
6.1 KiB
Markdown
# Headband lesson
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Create a charades game to play with your friends.
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## Topic
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Collection
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## Quick Links
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* [activity](/lessons/headbands/activity)
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* [quiz](/lessons/headbands/quiz)
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* [quiz answers](/lessons/headbands/quiz-answers)
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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 charades game using **[arrays](/types/array)** to store and retrieve data. We'll learn how to create a charades game using global variables, a collection of strings, math add, Boolean, on logo down, on logo up, forever loop, if statements, running time as well as simple commands, such as show string and show number.
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## What the teacher needs to know
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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.
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* Command: An instruction for the computer to execute, written in a particular programming language.
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* Data: A structured set of numbers, possibly representing digitized text, images, sound or video, which can be processed or transmitted by a computer, also used for numerical (quantitative) information.
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* Decomposing: The process through which problems or systems are broken down into their component parts, each of which may then be considered separately.
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* Input: Data provided to a computer system, such as via a keyboard, mouse, microphone, camera or physical sensors.
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* Output: The information produced by a computer system for its user, typically on a screen, through speakers or on a printer, but possibly through the control of motors in physical systems.
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* Programmable toys: Robots designed for children to use, accepting input, storing short sequences of simple instructions and moving according to this stored program.
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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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* Script: A computer program typically executed one line at a time through an interpreter, such as the instructions for a Scratch character.
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* Selection: A programming construct in which one section of code or another is executed depending on whether a particular condition is met.
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* Sequence: To place program instructions in order, with each executed one after the other.
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* Simulation: Using a computer to model the state and behaviour of real-world (or imaginary) systems, including physical or social systems; an integral part of most computer games.
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* Variables: A way in which computer programs can store, retrieve or change data, such as a score, the time left, or the user’s name.
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**QuickStart Computing Glossary
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## Documentation
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* **collection**
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* **[variables](/blocks/variables)**
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* **[Boolean](/blocks/logic/boolean)**
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* **[on logo up](/reference/input/on-gesture)**
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* **[on screen down](/reference/input/on-gesture)**
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* **[on screen up](/reference/input/on-gesture)**
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* **[show string](/reference/basic/show-string)**
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* **[game library](/reference/game)**
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## Resources
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* Activity: [tutorial](/lessons/headbands/activity)
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* Quiz: [quiz](/lessons/headbands/quiz)
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## Objectives
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* learn how a collection is a group of variables of the same type stored together
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* 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
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* learn how to repeat code in the background forever
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* learn how to learn how to conditionally run code depending on whether a condition is true or not
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* learn how to run code when the @boardname@ is oriented perpendicular to the floor with the logo down
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* learn how to get the number of milliseconds elapsed since the script began
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* learn how to show a string on the @boardname@ screen
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* learn how to show a number of the @boardname@ screen
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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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* Designs solutions (algorithms) that use repetition and two-way selection, ie if, then and else.(AL)
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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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* 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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* 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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* Has practical experience of a high-level textual language, including using standard libraries when programming(AB) (AL)
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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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* Understands the difference between data and information(AB)
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* Performs more complex searches for information e.g. using Boolean and relational operators(AL) (GE) (EV)
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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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* Uses criteria to evaluate the quality of solutions, can identify improvements making some refinements to the solution, and future solutions (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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* [tutorial](/lessons/headbands/activity)
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* [quiz](/lessons/headbands/quiz)
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## Intended follow on
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Publish script to the classroom.
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