# Abacus

Included in this section are assorted abacus tools.

Click here for an Abacus Detailed Handout of the information below.

Click here for a Complete List of Math Items in all of the Math Tools Sections without the detailed description.

- EZeeCOUNT Abacus http://www.aph.org 1-03185-00
- APH's EZeeCOUNT Abacus is specially designed with two-textured beads and a large frame to accommodate needs of students who are blind and visually impaired.
- This abacus consists of a 10 x 10 grid of flat beads. The beads can be flipped and distinguished by color and/or texture. The red beads are wavy/rough and the yellow beads are smooth. Each row of beads slides along an elastic band from left to right. The reverse side is a dry-erase board.
- The included instruction booklet provides examples of how the EZeeCOUNT Abacus can be used in a variety of ways.
- Activities:
- Counting
- Addition
- Subtraction
- Number Combinations
- Multiplication
- Fractions
- Patterns
- Graphs
- Place Value
- Games

- Before using the EZeeCOUNT Abacus for any of the activities in the Instruction Booklet, allow the student to practice:
- Flipping the beads from one side to the other.
- Recognizing and describing the texture difference between the beads.
- Sliding the beads from left to right while practicing abacus terminology. For example, when the beads are moved to the right side they are “set” and when they are moved to the left side they are “cleared.”
- Counting the number of rows and columns of beads.

- Beginner’s Abacus which is available at http://www.aph.org 1-03180-00
- A counting frame for reinforcing beginning mathematical concepts such as one-to-one correspondence, counting, place value, addition and subtraction.
- Introduces basic abacus terms such as “set” and “clear.”
- Consists of a black rectangular frame with 2 rods. Rods have 9 large white beads that slide against a red felt backing. Frame measures 2 1/2 x 5 1/2 x 1.

- Expanded Beginner's Abacus Kit http://www.aph.org 1-03181-00
- The Expanded Beginner's Abacus introduces visually impaired students to early math concepts and number operations, as well as abacus terminology. It supports concepts and skills such as one-to-one correspondence, number meaning, addition, and subtraction. It also lends itself to preparing a young student for the Cranmer Abacus.
- The abacus consists of a black frame with 3 rods. Each rod has 9 white beads that slide against a red felt backing. The red felt background provides a sharp visual contrast and prevents beads from slipping.
- The simple design of the Expanded Beginner's Abacus allows for direct representation of a given value and enhanced readability for “little fingers”. Measures 5.37 x 3.25 x 0.75 inches.
- Hook/loop strips are provided for connecting multiple abacuses together, in order for students to complete computations that involve amounts of money or numbers too large for the EBA.

Print guidebook included. Braille guidebook available separately.

- Large Abacus which is available at http://www.aph.org 1-03170-00
- Young students and those without fine motor skills can benefit from this large 13-rod abacus. Frame measures 8 1/4 x 4 1/2 inches and the bead diameter is 1/2 inch.
- White beads slide against a red felt backing.
- Recommended ages: 5 years and up.

- Cranmer Abacus which is available at http://www.aph.org 1-03150-00
- 13-rod abacus. Frame measures 6 1/8 x 3 1/4 inches. White beads have a diameter of 3/8 inch. Red felt backing prevents beads from slipping.
- An optional metal coupler is available for linking two abacuses together.
- Recommended ages: 5 years and up.