Marina Koestler Ruben, MA, is a professional tutor, writer, and editor who works as the official in-house writing tutor at the renowned Sidwell Friends School. She has also privately tutored students K–12 in math, science, history, English, ESL, French, Spanish, and other subjects. She has been published by the Washington City Paper, Smithsonian.com, CNN.com, EducationWeek.org, and McSweeneys.net, and she has appeared on NPR’s Ta... read more>>>

Learn to read and recall more written information in less time.

Work Smarter with Speed Reading is a practical guide to effective speed reading. It includes tools and information on a variety of reading and memory techniques, including a five-step strategy that will enable you to read any non-fiction material easily. You'll be able to start using and practicing the techniques right away as you read. The book also offers a se... read more>>>

Introduction
Chapter 1. Logic and Reasoning
Chapter 2. Lines and Angles
Chapter 3. Parallel and Perpendicular Lines
Chapter 4. Congruent Triangles
Chapter 5. Inequalities
Chapter 6. Quadrilaterals and Other Polygons
Chapter 7. Similarity
Chapter 8. Right Triangles
Chapter 9. Circles
Chapter 10. Trigonometry
Chapter 11. Coordi... read more>>>