Lesson 22 · Algebraic Expressions

Introducing Algebraic Expressions

MathematicsSubject

14 minEstimated read

Activity 22.1

What you needAbout thirty matchsticks, or thin strips of card cut to the same length.

MethodMake one square, then add squares in a row, counting the matchsticks each time.

Then predictWork out how many a row of ten would need, then write an expression for n squares.

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