Books like Turtle geometry by Harold Abelson

A foundational mathematics competition textbook that teaches problem‑solving techniques through over 500 contest problems and detailed solutions.

"New York Times bestselling author and mathemetician Danica McKellar tackles all the angles--and curves--of geometry In her three previous bestselling books Math Doesn't Suck, Kiss My Math, and Hot X: Algebra Exposed!, actress and math genius Danica McKellar shattered the "math nerd" stereotype by showing girls how to ace their math classes and feel cool while doing it. Sizzling with Danica's trademark sass and style, her fourth book, Girls Get Curves, shows her readers how to feel confident, get in the driver's seat, and master the core concepts of high school geometry, including congruent triangles, quadrilaterals, circles, proofs, theorems, and more! Combining reader favorites like personality quizzes, fun doodles, real-life testimonials from successful women, and stories about her own experiences with illuminating step-by-step math lessons, Girls Get Curves will make girls feel like Danica is their own personal tutor. As hundreds of thousands of girls already know, Danica's irreverent, lighthearted approach opens the door to math success and higher scores, while also boosting their self-esteem in all areas of life. Girls Get Curves makes geometry understandable, relevant, and maybe even a little (gasp!) fun for girls. "-- "In Girls Get Curves, Danica applies her winning methods to geometry. Sizzling with her trademark sass and style, Girls Get Curves gives readers the tools they need to feel confident, get in the driver's seat, and totally "get" topics like congruent triangles, circles, proofs, theorems, and more! Girls Get Curves also includes a helpful "Proof Troubleshooting Guide" so students can get "unstuck" and conquer even the trickiest proofs!"--

A collection of geometry exercises using paper folding, designed for teaching and learning, with visual aids and problem sets for classrooms.