The A+ Compass

A+ Compass was developed for the educator, artist, or anyone else who needs to create accurate constructions. This is a precision math compass for drawing geometry constructions or circles/arcs with a radius of up to approximately 14 inches. A+ Compass uses a wide variety of writing implements, from pencils to EXPO style markers, outstanding for board, overhead, and desktop use.

A+ Compasses are constructed of steel and nylon. They are easy to use, stable, safe (no steel points), and accurate.

Educators will find this tool excellent for classroom geometry use. This geometer’s compass is also ideal for use as an artist’s compass and as a general whiteboard compass.

A+ Compass is represented at most NCTM conferences and sends representatives to many local conferences. Workshops and support materials are also available.

Concerns Addressed by A+ Compass

• If you are concerned about state testing requirements that involve geometry
  constructions;
• If you want teachers to have an affordable tool that students can safely and accurately use;
• If you want elementary school teachers to be able to introduce circles and their properties;
• If you want to reinforce what you are doing with the technology of Geometer Sketchpad,

Then you should consider purchasing an A+ Compass.

Art Stoner

Art Stoner is the inventor of the A+ Compass and founder of the company. After earning his doctorate from Western Michigan University, he taught algebra, statistics, and research methods courses. In addition to college/university level experience, he has taught secondary level courses in geometry, second year algebra, and statistics.

Art designed the A+ Compass because he wanted an easy-to-use, accurate circle-drawing instrument that would be versatile enough to use with a variety of writing tools. After sharing it with area geometry teachers and seeing how pleased they were with it, he decided to make it available to others.

Jason Hildreth

Jason Hildreth earned a degree in Psychology from Princeton University and is currently in the process of obtaining his Master’s degree from Pacific University. He has been teaching at Jesuit High School in Portland, Oregon since 1995 and has taught Honors Geometry, Honors Algebra I, Precalculus, and General Algebra II. In addition to the A+ Compass material, he has written the Honors Geometry textbook used at Jesuit High School.