First Mnemonical Lessons in Geometry, Algebra, and Trigonometry (Classic Reprint) - Hardcover

T. P. Kirkman

9780483257276: First Mnemonical Lessons in Geometry, Algebra, and Trigonometry (Classic Reprint)

Hardcover

ISBN 10: 0483257273 ISBN 13: 9780483257276

Publisher: Forgotten Books, 2018

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From US$ 41.84

Unlock the fundamentals of geometry and algebra through lively, kid-friendly dialogue.

This classic text uses a engaging classroom-style conversation to introduce how points, lines, coordinates, and equations describe the world on a plane. Expect practical explanations, concrete examples, and a steady path from simple ideas to more intricate reasoning.

In these opening lessons, a group of curious youths—William, Jane, Richard, and others—talk through core concepts. They explore coordinates, lines in different axes, and the idea that a locus is a line formed by points following a rule. They discuss how equations express those rules and how changing axes still keeps the same truth. The dialogue makes abstract ideas feel approachable and invites readers to see patterns in numbers, shapes, and proofs.
What you’ll experience

A gentle, story‑driven path from basic coordinates to the idea of a locus and its governing equation.
Clear problems and step‑by‑step reasoning about lines, right angles, and parallels.
Insights into how bisectors, perpendiculars, and distances relate to a triangle’s sides.
Examples that connect algebra to geometry, including the role of signs, axes, and transformations.

Ideal for readers who want a readable, hands‑on introduction to early geometry, coordinate thinking, and the logic of proofs. The book’s approachable tone and concrete examples make it a good fit for curious beginners, homeschoolers, and students revisiting foundational concepts.

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