Lesson description:	All useful computer programs store and manipulate information. In order to store information that can be changed (i.e. vary), we need variables. This lesson will describe why and how we use variables in computer programs.
Time required:	55 minutes
Alabama DLCS standards:	8th grade: Computational thinker - Programming and Development #7
Lesson resources:	Teacher's guide PDF, MS-Word Presentation slides MS-Powerpoint Student worksheet PDF, MS-Word

This material is based upon work supported by
the National Science Foundation Grant No. 1744467 BBC micro:bit ® Micro:bit Educational Foundation