Exploring Expressions TN

 teachMathematics: Exploring Expressions TN

What confuses a number of students is the idea of letter as “variable”. That algebra generalises the laws of numbers by allowing a letter to represent any number we choose, not only a single number (letter as an “unknown”) as when solving equations. This activity focuses student’s attention on the concept of letter as “variable” and allows them to be imaginative and creative in exploring the wide range...

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