What is program variables ? Explain the rules of naming variables ? How to determine the value of a variables?

Learning Area :
3.1 State variables.
3.2 Explain the rules of naming variables.
3.3 Assign Values to Variables.

Learning Outcome:
After the class students will be able to learn:
 To know aboutassigning values tovariables, multiple assignments.

Class/Lab Supporting Equipment’s:
 Projector.
 Computer.
 White board & Marker.