13 KiB
13 KiB
foo
blank lesson #docs
~screen TODO
@video vimeo/134121040
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Topic TODO:
Basic - Show Number
Quick Links TODO:
Class
Year 7
Prior learning/place of lesson in scheme of work TODO:
Learn how to creating a global number variable, data->count to keep track of the current count. We will be learning how to create a counter app using global variables as well as simple commands, such as on button pressed, and show number.
What the teacher needs to know TODO:
- Acceptable Use Policy (AUP): An Acceptable Use Policy comprises a set of rules applied by the owner/manager of a network, website or large computer system that defines the ways in which the network, site or system may be used.
- Algorithm: An unambiguous set of rules or a precise step-bystep guide to solve a problem or achieve a particular objective.
- Command: An instruction for the computer to execute, written in a particular programming language.
- Computational thinking: Thinking about systems or problems in a way that allows computer systems to be used to model or solve these.
- Computer networks: The computers and the connecting hardware (wifi access points, cables, fibres, switches and routers) that make it possible to transfer data using an agreed method (‘protocol’).
- Creative Commons: A licensing scheme where the creator of an original work allows others to use it without seeking further permission, subject to a number of agreed conditions: www. creativecommons.org.
- Data: A structured set of numbers, possibly representing digitised text, images, sound or video, which can be processed or transmitted by a computer, also used for numerical (quantitative) information.
- Debug: To fix the errors in a program.
- Decomposing: The process through which problems or systems are broken down into their component parts, each of which may then be considered separately.
- Domain Name Service (DNS): The distributed automatic system that converts domain names into the IP addresses which are used for routing packets via the internet.
- Encrypt: To securely encode information so that it can only be read by those knowing both the system used and a secret, private key.
- E-safety: Used to describe behaviours and policies intended to minimise the risks to a user of using digital technology, particularly the internet.
- Generalisation: A computational thinking process in which general solutions or models are preferred to or derived from particular cases.
- Hardware: The physical systems and components of digital devices; see also software.
- Hypertext mark-up language (HTML): HTML is the language in which web pages are composed.
- Hypertext transfer protocol (HTTP): HTTP is the standard protocol for the request and transmission of HTML web pages between browser and web server.
- Input: Data provided to a computer system, such as via a keyboard, mouse, microphone, camera or physical sensors.
- Interface: The boundary between one system and another – often used to describe how a person interacts with a computer.
- Internet Protocol (IP) addresses: Numeric addresses uniquely specifying computers directly connected to the internet, also used on private networks to uniquely identify computers on that network.
- Loop: A block of code repeated automatically under the program’s control.
- Network server: A computer connected to a local area network providing services – such as file storage, printing, authentication, web access or email – automatically to other computers on the network.
- Open source software: Software in which the source code is made available for others to study, and typically adapt, usually with few if any restrictions.
- Operating system: The programs on a computer which deal with internal management of memory, input/output, security and so on, such as Windows 8 or iOS.
- 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.
- Packets of data: A small set of numbers that get transmitted together via the internet, typically enough for 1000 or 1500 characters.
- Programmable toys: Robots designed for children to use, accepting input, storing short sequences of simple instructions and moving according to this stored program.
- 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.
- Repetition: Executing a section of computer code a number of times as part of the program.
- Router: Network hardware which forwards packets of data onwards to the most appropriate hardware to which it is connected.
- Screencast: A recording of on-screen action that is often accompanied by an audio narration.
- Script: A computer program typically executed one line at a time through an interpreter, such as the instructions for a Scratch character.
- Selection: A programming construct in which one section of code or another is executed depending on whether a particular condition is met.
- Sequence: To place program instructions in order, with each executed one after the other.
- 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.
- Sprite: A computer graphics object that can be controlled (programmed) independently of other objects or the background.
- Uniform Resource Locator (URL): A standard for specifying the location on the internet of certain files.
- 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.
- Web server: A service running on a computer (or sometimes for the computer itself) that returns HTML data for a web page when it receives an HTTP request via the local network or the internet.
- World Wide Web: A service provided by computers connected to the internet (web servers), in which pages of hypertext (web pages) are transmitted to users.
**QuickStart Computing Glossary
Documentation TODO:
- show number : read more...
Resources TODO:
- Activity: tutorial
- Activity: quiz
- Extended Activity: challenges
Objectives TODO:
- learn how to create a global variable
- learn how to blink a light
- learn how to repeat turning on and off the light
Links to the National Curriculum Programmes of Study for Computing TODO:
Progression Pathways / Computational Thinking Framework TODO:
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)
- Shows an awareness of tasks best completed by humans or computers (EV)
- Designs solutions by decomposing a problem and creates a sub-solution for each of these parts. (DE) (AL) (AB)
- 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)
- Recognises that different algorithms exist for the same problem (AL) (GE)
- Represents solutions using a structured notation (AL) (AB)
- Can identify similarities and differences in situations and can use these to solve problems (pattern recognition)(GE)
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)
- Designs, writes and debugs modular programs using procedures(AL) (DE) (AB) (GE)
- Knows that a procedure can be used to hide the detail with sub-solution(AL) (DE) (AB) (GE)
- Understands that programming bridges the gap between algorithmic solutions and computers(AB)
- Has practical experience of a high-level textual language, including using standard libraries when programming(AB) (AL)
- 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
- Understands the difference between data and information(AB)
- Knows why sorting data in a flat file can improve searching for information (EV)
- Uses filters or can perform single criteria searches for information.(AL)
- Performs more complex searches for information e.g. using Boolean and relational operators(AL) (GE) (EV)
- Analyses and evaluates data and information, and recognises that poor quality data leads to unreliable re sults,and inaccurate conclusions (AL) (EV)
- Knows that digital computers use binary to represent all data (AB)
- Understands how bit patterns represent numbers and images (AB)
- Knows that computers transfer data in binary (AB)
- Understands the relationship between binary and file size (uncompressed) (AB)
- Defines data types: real numbers and Boolean (AB)
- Queries data on one table using a typical query language (AB)
Hardware & Processing
- Knows that computers collect data from various input devices, including sensors and application software (AB)
- Understands the difference between hardware and application software, and their roles within a computer system (AB)
- Understands why and when computers are used (EV)
- Understands the main functions of the operating system (DE) (AB)
- Knows the difference between physical, wireless and mobile networks (AB)
- Recognises and understands the function of the main internal parts of basic computer architecture (AB)
- Understands the concepts behind the fetch-execute cycle (AB) (AL)
- Knows that there is a range of operating systems and application software for the same hardware (AB)
Communication Networks
- Understands the difference between the internet and internet service e.g. world wide web (AB)
- Shows an awareness of, and can use a range of internet services e.g. VOIP.
- Understands why and when computers are used (EV)
- Selects, combines and uses internet services (EV)
- 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)
- Understands how to construct static web pages using HTML and CSS (AL) (AB)
- Understands data transmission between digital computers over networks, including the internet i.e. IP addresses and packet switching. (AL) (AB)
Information Technology
Collects, organizes, and presents data and information in digital content (AB)
- Creates digital content to achieve a given goal through combining software packages and internet services to communicate with a wider audience e.g. blogging (AL)
- Makes appropriate improvements to solutions based on feedback received, and can comment on the success of the solution (EV)
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- Makes judgements about digital content when evaluating and repurposing it for a given audience (EV) (GE)
- Recognises the audience when designing and creating digital content (EV)
- Understands the potential of information technology for collaboration when computers are networked (GE)
- Uses criteria to evaluate the quality of solutions, can identify improvements making some refinements to the solution, and future solutions (EV)
- Evaluates the appropriatness of digital devices, internet services and application software to achieve given goals (EV)
- Recognises ethical issues surrounding the application of information technology beyond school.
- Designs criteria to critically evaluate the quality of solutions, uses the criteria to identify improvements and can make appropriate refinements to the solution (EV)
Computational Thinking Concept: AB = Abstraction; DE = Decomposition; AL = Algorithmic Thinking; EV = Evaluation; GE = Generalisation
Activity TODO:
Extended Activity TODO:
- time: 20 min.
- challenges
- assessment opportunities: loops, plot, pause, clear screen
Homework TODO:
- Extended Activity: challenges
Intended follow on
Publish script to the classroom.