## Prior learning/place of lesson in scheme of work
Learn how to manipulate an image through **fade out**, `led->fade out` to gradually decrease the LED screen brightness until the LED lights are turned off. We will be learning how to fade an image using simple commands, such as plot image, fade out, pause, and fade in.
## What the teacher needs to know/QuickStart Computing Glossary
* Algorithm: An unambiguous set of rules or a precise step-bystep guide to solve a problem or achieve a particular objective.
* Computational thinking: Thinking about systems or problems in a way that allows computer systems to be used to model or solve these.
* Hardware: The physical systems and components of digital devices; see also software.
* Programmable toys: Robots designed for children to use, accepting input, storing short sequences of simple instructions and moving according to this stored program.
* Script: A computer program typically executed one line at a time through an interpreter, such as the instructions for a Scratch character.
* 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.
