Unit+6+Task+3



 **Task Three Objectives **: 
 * Today you will learn: **
 * how information from sensors can be used to control event
 * how to use control software to create and test flowcharts. 
 * I am looking for you to: **
 * present a set of instructions as a flowchart
 * give examples of where sensors could be used to control something
 * explain what happens in a loop

Task Three instructions:
** 2 ** Watch Slideshow 1 again. Each control system responds to sensors. Write a list of the sensors. View [|7.6.3.slideshow1.ppt]. ** 3 ** Discuss the example diagram, showing how a loop can be used to monitor a sensor. View [|7.6 Teacher resource 3c.ppt]. ** 4 ** Complete an event table to control the lights at a pelican crossing. Watch the Pelican Sequence to help you remember the order in which the lights change. Save the following files: [|pelican-planner.ppt] [|pelican-sequence.ppt] ** 5 Extension ** : Experiment with controlling the level crossing mimic, so that it responds to the train coming. ** 6 ** **Plenary**: [|Plenary.doc]
 * 1 ** Recap on last lesson and look at flowcharts and loops. View [|7.6 Teacher resource 3b.ppt].