# AL Abacus - Blue

# 059363

Our Price: \$16.50
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Warning
Choking Hazard
• Small parts Not for children under 3 yrs.

#### Product Description:

This plastic, horizontal abacus (measuring 9.75" x 7.5") contains 10 metal rods, 10 plastic beads per rod (5 yellow, 5 blue). The numbers 1, 10, 100 and 1000 are marked on the frame. An Activities Manual (#011217) and Worksheets (#006255) are products that provide additional learning activities for this abacus. ~ Donna

#### Publisher Description:

AL Abacus Standard is Made in the USA!* This 9-3/4" x 7-1/2" (24.75 cm x 19.25 cm) plastic abacus is grouped in 5s and 10s to encourage quantity recognition and visualization. On one side the child performs basic operations and learns strategies for mastering the facts. On the reverse side, trading is emphasized.

Category Description for RightStart Mathematics:

Based on research comparing the differences between Japanese first grades and first grade classrooms in the U.S., this curriculum incorporates certain aspects from Asian math programs such as non-counting strategies and, for us, an alternative number naming system. In this program, the student is taught to see quantities in groups of fives and tens. When asked to add 9 + 7, instead of counting 7 up from 9, you would take 1 from 7 to make 10 and 6. This program also uses a unique number naming system. Asian words for numbers greater than 10 implicitly give you a feel for the base ten system. Literally translated, eleven is "ten-one," twelve is "ten-two," and so on. RightStart students learn to count the "math-way" before they are taught the less intuitive words for 11 to 19.

I cant summarize this program better than the creator, so let me quote from the manual:

"There are eleven major characteristics.

1. Refer to quantities of up to 3 as a group; do not count individually.

2. Use fingers to show quantities up to 10; teach 6 to 10 as 5 plus a quantity.

3. Avoid counting procedures for finding sums and remainders.

4. Once quantities 1 to 10 are known, proceed to 10 as a unit. Use the "math way" of counting; say for example, 1-ten 1 for eleven, 1-ten 2 for twelve, 2-ten for twenty, and 2-ten 5 for twenty-five.

5. Use expanded notation (overlapping) place-value cards for recording 10s and 1s

6. Proceed rapidly to hundreds and thousands; use place-value cards. Provide opportunities for trading between ones and tens, tens and hundreds, and hundreds and thousands with manipulatives.

7. Only after the above work, give the traditional English names for quantities 20 to 99 and then 11 to 19.

8. Teach tens-based strategies for addition and subtraction facts that have a sum > 10. Teach informal solutions and mental computation before written algorithmic work.

10. Teach four-digit addition and subtraction on the abacus; let the children discover the paper and pencil algorithms.

11. Short division precedes long division, which is taught in fourth grade."

In Level G, students continue to practice arithmetic, fractions and decimals, while they begin to also explore triangles, area, volume, ratios, Pythagorean Theorem, tiling, and other new concepts.

CHOKING HAZARD (1). Not

Category Description for COMPREHENSIVE PROGRAMS - ELEMENTARY:

Primary Subject
Mathematics
PK
Format
Other
Brand Name
Activities for Learning
Weight
0.55 (lbs.)
Dimensions
9.75" x 7.56" x 0.62"
Browse 1 question Browse 1 question and 26 answers
Why did you choose this?
Rainbow Resource Center Store
I want to teach my young child addition and subtraction using a more visual method.
on May 23, 2023
to supplement our current and future math curriculum
on Jun 9, 2022
I want to teach my young child addition and subtraction using a more visual method.
on May 23, 2023
I have multiple children using RightStart math, so I wanted an extra abacus.
on Aug 1, 2022
I have multiple children using RightStart math, so I wanted an extra abacus.
on Aug 1, 2022
Needed for Right Start Math D 2nd edition for multiple children
on Mar 11, 2022
5.0 / 5.0
4 Reviews
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Rated 5 out of 5
Great for maths and general play
Great quality. Smaller than expected but it's not something I checked in the description before purchasing (unsure if the size is listed or not). Regardless, the size is fine for what my kids need and bigger just means it takes up more space so certainly not a loss there. Excellent tool for maths and for general play.
October 14, 2022
Purchased
1 year ago
Rated 5 out of 5
This is a quality AL Abacus.
December 19, 2020
Purchased
over 2 years ago
Rated 5 out of 5
One of my top math resources. Most useful for simple addition/subtraction, "building" numbers, and concretely demonstrating percentages. (The baby also loves pushing the beads around.) Love having a math manipulative that doesn't have a million tiny pieces!
August 17, 2019
Purchased
over 5 years ago
Rated 5 out of 5
Great tool to help students visualize math
Any abacus set up in groups of 5s and 10s is so helpful in helping little ones visualize math problems. We have used ours for three years with RightStart Math (and now Horizons). I wish I had been taught to think of math this way--would have saved many hours of mathematical confusion, I think! If you aren't familiar with how to use this type of abacus, consider getting an AL activities guide for the abacus to know how to make the most of it. (Initially, I had no idea how to make the most of it, though now as an adult, I am fairly good at mental math.) Just wish I had bought one in pink/white when it was available as a limited edition!
September 8, 2017

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