## Prior learning/place of lesson in scheme of work
Learn how to create a charades game with **collections**, ` create -> Collection of` , to store and retrieve data . We will be learning how to create a charades game using global variables, collection of string, 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.
## What the teacher needs to know
* 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.
* 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.
* Decomposing: The process through which problems or systems are broken down into their component parts, each of which may then be considered separately.
* Input: Data provided to a computer system, such as via a keyboard, mouse, microphone, camera or physical sensors.
* 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.
* 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.
* 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.
* 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.
* learn how a collection is a group of variables of the same type stored together
* 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 to repeat code in the background forever
* learn how to learn how to conditionally run code depending on whether a condition is true or not
* Designs solutions (algorithms) that use repetition and two-way selection, ie if, then and else.(AL)
* Uses logical reasoning to predict outputs, showing an awareness of inputs (AL)
* 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)
* Represents solutions using a structured notation (AL) (AB)
* 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)
