### The Farmer and the Mathematician II:

##### more mathematical investigations using Geometry Expressions

by: Larry Ottman

Physical book (delivered by mail) $24.95 + S&H

PDF eBook (digital download) $9.99

This is Mr. Ottman's second book about a corny farmer and his mathematician friend. Our farmer uses a Center Pivot Irrigation System - those long stretches of wheeled scaffolding, sometimes up to a half-mile in length, rotating around a fixed point attached to his water source. This presents real world geometry problems concerning how to fit a circular or semi-circular irrigated plot into a polygonal (usually rectangular, sometimes triangular or even trapezoidal) field.

As in the first book, we demonstrate to the student that Mathematics is not just for calculating the price of produce in the grocery store. Here we have a fresh batch of examples of mathematics in action using our symbolic geometry software, Geometry Expressions, with images from Google Earth.

So join the Farmer and his mathematical instructor, Sophie, as they fly over Texas, investigating interesting geometrical ideas and stumbling over important mathematical concepts. The content is appropriate and adaptable for students in a range of courses from Algebra and Geometry up through and including Calculus.

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