Abacus, Side-to-side, Blue and Yellow

Abacus, Side-to-side, Blue and Yellow

# 004083

Our Price: $11.75
Retail: $13.99
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Item #: 004083
Grades: K-8

Choking Hazard
  • Small parts Not for children under 3 yrs.

Product Description:

A side-to-side plastic bead abacus. There are 10 wire rows of 10 beads each on a 9" x 8" plastic frame. The most helpful feature of the abacus is the use of blue and yellow colored beads -there are 5 of each color per row- which makes it more effective for all operations.

Publisher Description:

This abacus features a frame that is thicker than the beads, which allows abacus to lie flat on student desks. Abacus activities offer students tactile counting practice and visual reinforcement of math facts. Includes 10 rows of 10 beads in 2 colors grouped in fives for ease of use. Abacus measures 8 1/2" L x 9 1/2" W x 1/2" H.

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.

All levels require a lesson manual and worksheets, which are included in the starter kits. (The worksheets are also available separately for multiple students.) Lesson manuals contain detailed lesson plans with helpful diagrams and teaching notes. Both lesson manuals and worksheets are spiral-bound. Add on kits allow you to move forward, buying only what you need in addition to what you already have for the next levels. Deluxe Starter kits (and deluxe add-on kits) are now available, which include everything in the original kits, plus additional recommended books and manipulatives. Please note that if you start with a deluxe kit, you will need a different upgrade kit to transition to the next level. See individual descriptions for more details on kit-specific contents.~ Anh



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0.55 (lbs.)
7.5" x 10.0" x 1.0"
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Browse 1 question Browse 1 question and 33 answers
Why did you choose this?
Rainbow Resource Center Store
I bought this as an extra for my younger son.
Stephanie A on Jun 17, 2022
school recommended
Corrin L on Aug 27, 2021
I bought this as an extra for my younger son.
Stephanie A on Jun 17, 2022
I thought it would go well with my daughter's 2nd grade math lessons.
Kelsey K on Sep 5, 2021
school recommended
Corrin L on Aug 27, 2021
part of preschool requirement
Jeannette S on Jun 24, 2021
We have one of these abacuses already, and it is incredibly useful. I wanted a second to so multiple children could work problems simultaneously, and also just to have a spare, because we use it all the time.
Grace U on Mar 15, 2021
I purchased the item for my son for math practice. We love it!
Sylvia N on Mar 10, 2021
required for the curriculum.
Laura R on Feb 2, 2021
Ordering another one for my sister's kids because we love ours! I was taught math using cuisenaire rods and have used those with my kids as well - they are an out of this world fantastic manipulative. But the abacus is a fantastic complement to them, because it helps the children work with numbers, particularly place value, that the rods don't really allow for.
Hannah A on Jan 22, 2021
On our school required buy list.
Scott K on Aug 11, 2020
Help visualizing adding and subtraction.
Toya B on Aug 6, 2020
Great price, perfect for beginning math!
Nikki V on Jul 11, 2020
required for math mammoth
Elizabeth D on May 21, 2020
We aren't using RightStart but I bought a blue abacus for one child, and needed a second one for my other child. The price was right, and I like that they have the yellow/blue beads. We're using Math Mammoth and I see some abacus work in the 1B book.
Amy K on Feb 4, 2020
We use Right Start Math, and I would like to have a second abacus to work with. This red one is $6 cheaper, but appears to be the same as the blue Al Abacus.
Heather H on Jan 13, 2020
After using this abacus for over 10 years with different kids it got destroyed and needed to buy another one. Excellent product.
Amanda M on Oct 19, 2019
Putting together a math manipulative kit for a kinesthetic learner.
User on Jul 29, 2019
I think having beads divided into groups of five by color makes addition and subtraction much easier for children.
Ellen L on Nov 28, 2018
Good visual aid for a student I'm tutoring.
Paola A on Nov 25, 2018
I am adding a student to math who will need his own abacus.
Molly H on Nov 6, 2018
We love Right Start Math in our homeschooling. It is definitely a one on one experience with your child, but it's completely worth the investment in time. These math manipulatives really help the children connect with the math and understand it!
Kristi M on Sep 10, 2018
This is for my Pre-Schooler to feel a part of math time when her sister starts Kindergarten this year.
Joy K on Aug 2, 2018
Recommended by a friend- can't wait to try it out!
Hannah A on May 1, 2018
Great price
Kimbre B on Apr 27, 2018
GREAT teaching tool. I love this abacus for visualizing sets of 5 and 10, etc. Much easier to manage and handle than counters.
Suzanne S on Feb 19, 2018
It was the best price I have found.
Christina D on Nov 16, 2017
So both my children have an abacus while doing math
Jenny W on Sep 11, 2017
Needed for Math Mammoth, best price
Lynette C on Aug 17, 2017
Already have one, but can't find it and need it for Right Start Math Level B.
Julie Y on Jan 9, 2017
needed one to start rightstart
User on Aug 1, 2016
We found that with two in RightStart Math, they each needed to have their own.
Jessica N on May 1, 2016
Right Start is working well for us. I'm adding an abacus for each child so the older can work independently on practice while I'm teaching a lesson to the younger.
Ami S on Feb 19, 2016
I needed to complete my old Right Start set. Glad you still have the red version.
Carol V on Jan 6, 2016
The colorful abacus' are prettier to look at but we've just started using Dreambox and this two-color abacus is perfect to practice with.
Matthew B on Nov 11, 2015
I thought it would go well with my daughter's 2nd grade math lessons.
Kelsey K on Sep 5, 2021
part of preschool requirement
Jeannette S on Jun 24, 2021
5.0 / 5.0
5 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
good for singles and place holders
has a 1s side and and a 1s, 10s, 100s, 1000s side which is very nice.
October 1, 2020
1 year ago
Rated 5 out of 5
Basic Math Manipulative
Every student should have one at their desk. They color divisions help the child conceptualize the number: i.e. "the two fives strategy" 8+7 is 5 and 3 + 5 and 2. They recognize the two fives equal 10 and the only thing they have to add is the 3+2.
September 20, 2020
1 year ago
Rated 5 out of 5
This has helped my 5 year old make sense of both addition and subtraction. It’s also super helpful with counting by 5’s. Such a great resource!
May 30, 2020
over 2 years ago
Rated 5 out of 5
Excellent Place Value and Numeration teaching tool.
We purchased it for use in a Right Start math class. If you don’t use that curriculum, it also adds easily to any math program, especially if you have a visual/kinethetic learner. Math concepts from K through middle school can be taught and solved with this Abacus because of the place value side.
March 12, 2018
over 4 years ago
Rated 5 out of 5
Abacus to teach addition & multiplication
This abacus is made very well as my 6 year learns and plays with it. I also appreciate that it came with a small instruction book.
January 18, 2018
over 4 years ago

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