Hadley's method really works. You can work at your own pace and fit your studies into your own schedule.
— Dennis, CA, 2014
A+ Math At Home
Do math flashcard drills on the computer or create custom flashcards for printing
American Printing House for the Blind
A good source for abacus books, recordings and products
A method for doing arithmetic on your fingers
Instructions for making an abacus out of Legos
Position Paper by Terrie Terlau and Fred Gissoni
This position paper on the APH website supports visually impaired student's
use of the abacus as equivalent to sighted student's use of paper and pencil
Teaching Math to Visually Impaired Students
Written by Susan Osterhaus, secondary math teacher at the Texas School for
the Blind and Visually Impaired.
Abacus section includes information on the abacus vs. talking calculator, the counting method, prime factorization, and an abacus internet site packet.
Tomoe Soroban website
How to use an abacus
Links to other abacus sites
Download a free abacus screensaver clock
A tactile approach to learning math
Abacus Basic Competency: A Counting Method
By Susan M. Millaway
This book offers an alternative way to teach addition and subtraction on the abacus, called the counting method. It is especially useful for younger students and those who have difficulty learning the indirect methods of addition and subtraction. It is available in both braille and large print from APH.
The Abacus Made Easy, 2nd ed.
by Mae Davidow
This instruction book serves as a simplified manual for teaching the Cranmer abacus. It is available in both braille and large print from APH.
Handbook for Itinerant and Resource Teachers of Blind and Visually Impaired
by Doris M Willoughby and Sharon L. Duffy
One section of the book is devoted to the paper compatible abacus, a method
similar to the paper and pencil method. For instance, addition and subtraction
are done from right to left, just as on paper. Borrowing and carrying are also
done, as if on paper. Thus, conceivably, the visually impaired student could
learn the same concepts as the sighted child, yet do them on the abacus. It
is an interesting alternative to teaching the abacus, especially to a new abacus
user who is in the regular classroom.
To order the book, contact Ellen Ringlein (410) 659-9314, extension 2421, firstname.lastname@example.org.
Use of the Cranmer Abacus
by Rita Livingston
This book teaches the counting method as well as the indirect rules method.
It is available in print from the Texas School for the Blind and Visually Impaired.
Using the Cranmer Abacus for the Blind
by Fred L. Gissoni
This manual, complete with practice exercises and answers, provides instruction on the addition, subtraction, multiplication and division of whole numbers, decimals and fractions, as well as the extraction of square roots and use of the abacus as a calendar. Available in both braille and large print from APH.Back to Top
** Abacus Attack
The Abacus Attack game reinforces basic math concepts mastered in the Abacus 1 course. The game board is tactile, and all playing cards are in braille and large print. If you think this is a game you would like to borrow, please contact your abacus instructor. Unfortunately, this game is no longer available for purchase. Please note that the game comes in a very large box. Therefore, indicate the address where you can accept it.
A free app for use with the iPhone, iPad or iPod touch.
** Baseball Game
This game is no longer available from APH. Hadley students who reside in the United States may ask to borrow the game from the abacus instructors.
A computer program that lets the student practice math problems or take quizzes
in a fun, interactive flash card format with digitized human speech and an
animated character. Problems can be customized.
American Printing House for the Blind
You can purchase three different types of abaci at the American Printing House, including the Cranmer abacus which Hadley provides with the abacus course materials. American Printing House also carries the beginner's abacus, the large-size abacus, and the coupler (which allows users to link together two abaci.)
The Braille Superstore
The Braille Superstores offers an abacus, a coupler, and an abacus kit which contains two abaci and a coupler.
Combined Arithmetic and Abacus Frame
Maxi-Aids offers a combined arithmetic and abacus frame. Two colorful 15 column abaci are also available for purchase.
** Items may be borrowed from Hadley by students who reside within the United States.