KS1

CS1: Understand what algorithms are; how they are implemented as programs on digital devices; and that programs execute by following precise and unambiguous instructions

Keyword	Definition
algorithm	step by step instructions to solve a problem (with or without using a computer)
desktop	a type of computer that usually stays in one place on a desk with a big screen and separate keyboard
digital device	a gadget that you can use as a computer
instructions	really clear commands that a computer can follow
keyboard	part of a computer with lots of buttons that you can use to type
laptop	a type of computer that has a keyboard and screen that folds open and closed
mouse	part of a computer that you can move around to point to different parts of the screen
program	code containing step by step instructions telling a computer exactly what to do
screen	part of the computer that lights up to show you work, videos and writing
smartphone	a type of computer which fits in your pocket
tablet	a type of computer with a touch screen but no keyboard
touch screen	a special type of screen that you can touch to control a computer

Revise

CS2: Create and debug simple programs

Keyword	Definition
algorithm	step by step instructions to solve a problem (with or without a computer)
block	a single instruction in scratch
comment	a special type of block in scratch that lets you explain what your script does without changing how it works
costume	a drawing that tells scratch how to display a sprite on the screen
debug	finding and fixing problems with code in a computer program
event	something in scratch that triggers a script to start running (like clicking on the green flag or pressing a key)
prediction	your best guess of what a program will do before you run it
program	step by step instructions in code that tells a computer exactly what to do
scratch	a program you can use to make your own games and animations
script	one or more block that tells scratch how a sprite moves or behaves
sprite	something in scratch that you can program to move or behave in different ways
variable	something in scratch that can remember something (like the game score or the player's name)

Revise

CS3: Use logical reasoning to predict the behaviour of simple programs

Keyword	Definition
algorithm	step by step instructions to solve a problem (with or without a computer)
coordinates	the position of a sprite on the screen
debugging	finding and fixing mistakes in code so that a program works properly
input	things like pressing keys or moving the mouse that sends data into a computer program
logical reasoning	thinking carefully to predict and explain what a program will do when you run it
output	things like sound or graphics that sends information out from a computer program
programming	writing computer code to give it instructions for a game, app program
script	one or more blocks or instructions in a program that tells a computer what to do
sprite	something in a program that you can see and that can move around
variable	something in a computer program that can remember a value (like the score for a game or the player's name)

Revise