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Video Trainings from Iowa on Abacus

Video trainings on the use of the abacus to teach mathematics to students who are blind or visually impaired

Sara Larkin, Math Consultant for the Iowa Educational Services for the Blind & Visually Impaired, presents a series of video trainings on how the abacus can be used for concept development and computation in mathematics.  Topics include:

Beginner’s and Expanded Beginner’s Abacus

 

Cranmer Abacus

 

http://www.iowa-braille.k12.ia.us/vnews/display.v/ART/55d61df71b7a4