Three of the fundamental coding elements are loops, conditionals, and variables.  In this lesson we review these elements and how to apply them in Makecode a development environment from Microsoft that is used to program the Boolean Box Micro’s Bluebird programmable circuit board.  If you have coded before, especially if you have coded in Scratch this will seem familiar.  Of course in this course, your code will control real world objects like lights and speakers instead of Sprites and Backgrounds.