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  • The Cranmer Abacus -- Introduction - faculty. umb. edu
    Addition is done on the abacus using direct and indirect methods When we add on the abacus, we will be working from left to right Direct Addition is simple
  • The Cranmer Abacus - Teaching Students with Visual Impairments
    The Cranmer Abacus is a vital tactile math tool that enables students who are blind or visually impaired to perform calculations independently and efficiently More than just a substitute for paper-and-pencil tasks, the abacus builds strong number sense, supports conceptual understanding, and promotes mathematical independence
  • Math Support for Visually Impaired Students in Iowa - IESBVI
    Abacus An abacus is a great calculation tool for students who are blind It is comparable to paper and pencil for students who can see and allows students to keep track of their numbers while doing computation
  • CEU Article The Abacus: Teachers’ and Beliefs About Their Abacus . . .
    indirect method to teach the abacus The indirect method combines both the logic-partner method and the se­ crets method Complements are ex­ plained, and students are expected to use that understanding to follow a specific set of rules for adding and subtracting In the first two decades following its
  • Video Trainings from Iowa on Abacus – Paths to Literacy
    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 Part 1 An Introduction to the Beginner’s Abacus
  • Cranmer Abacus Indirect Method Subtraction with Decimals
    This video shows a subtraction problem with decimals on the Cranmer Abacus for students with visual impairments
  • Cranmer Abacus - Perkins School for the Blind
    When I type “Cranmer abacus” in “Google”, I get links to instructional videos that are random and disconnected I had to spend a couple of hours looking through specific websites to find instructional videos for “introduction to Cranmer abacus”, “addition”, “subtraction” and “multiplication ”
  • Indirect Addition Procedures: Abacus for the Blind Flashcards
    There are two ways of adding 1, 2, 3, 4, 6, 7, 8 and 9 indirectly on an abacus Different methods for each number are listed on seperate cards For example, the first method for adding one is listed as "a add 1 " The second method for adding 1 is listed on a separate card as, "b …
  • APH — American Printing House for the Blind
    When first introducing the student to the Cranmer Abacus, the teacher may want to point out the physical differences between the Cranmer Abacus and the Beginner's Abacus in a side-by-sidc fashion Notable changes include the following increased number of columns decreased number of beads per column
  • Non-cognitive differences between abacus-trained students and their . . .
    The overlap of the explained variance suggests an interplay between cognitive and non-cognitive skills Thus, the non-cognitive improvements of abacus-trained students could be the combination of the direct effects of abacus training and its indirect impact through cognitive enhancement





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