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Mathematics Professional Development

Mathematics professional developemnt

Developing and maintaining a professional learning community is an essential element of a well-functioning school. This book will help school leaders conduct ongoing, structured learning opportunities tailored to the needs and interests of the participating mathematics teachers.

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‘Proof’ that 2 = 1

let a = b

then a2 = ab

a2 - b2 = ab-b2

(a-b)(a+b) = b(a-b)

a+b = b

substituting b+b = b

2b = b

2 = 1

Where is the error made?

You need to be aware that a – b = 0. This false proof relies on dividing both sides of an equation by zero which should not be done.