## Prior learning/place of lesson in scheme of work
Learn how to control a blinking LED image. We will be learning how to create a blinking app using global variables, forever as well as simple commands, such as create image, show image, pause, and clear screen.
## What the teacher needs to know
**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.**
**Algorithm:** An unambiguous set of rules or a precise step-by-step guide to solve a problem or achieve a particular objective. The guided tutorial follows a algorithm and is a precise step-by-step guide to solve a problem**
**Loop:** A block of code repeated automatically under the program’s control. ** The blink program introduces Forever. Forever will repeats code in the background forever.
**Command:** An instruction for the computer to execute, written in a particular programming language.**
