Variables

Introduction to Algebra

 

This Video explains a brief history of algebra. A very brief discussion on developments of Algebra in Ancient India is also given. We also learn the basic difference between arithmetic, geometry and algebra in mathematics.

 

 

Concept of a Variable

 

This video explains the concept of a "variable", which is a fundamental concept in algebra. We use matchstick patterns to arrive at the understanding of a variable.

 

 

Examples on Matchstick Patterns

 

This video discusses   Two more examples of creating rules for matchstick patterns using variable and how we can use the four mathematical operations of addition, subtraction, division and multiplication when using variables.

 

 

Defining Variable in Algebra

 

This video explains the concept of "variable", which is a fundamental concept in algebra. We define what a variable is and how it is represented. We also discuss the difference between variable and fixed numbers using examples of geometric shapes ( like rectangle, triangle, pentagon , hexagon and polygon)

 

 

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