For the program to follow the Yes branch, the light sensor must detect a light value between 90 and 100. 


The On AC block takes ‘no time’ to execute.  The program drops immediately to the Yes or No block.


Here on AC for 3 takes 3 second to execute.  It takes 3 seconds for the program to get to the Yes or No block.

© The LEGO Group

Transparency # 6A. To be used with Lighten Up! activity.