Primary Math US 2A Set

Primary Math US 2A Set


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Item #: PMUS2A
Grades: 2

Product Description:

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This package includes the following items:

Category Description for Primary Math U.S. Edition (Gr. 1-6):

I'll admit, my initial reaction to this program was skeptical. The textbooks are thin and have a straightforward, no-nonsense appearance. Texts switch from full-color to two-toned pages after second grade, and all workbooks are printed in black and white. After spending a great deal of time evaluating the program's contents, however, my opinion has improved considerably. Primary Math uses a concrete-to-pictorial-to-abstract approach to teaching. Concrete illustrations are incorporated heavily in the early grades, gradually giving way to more abstract representations so that math is learned meaningfully. The program builds strong problem solving, critical thinking, and computational skills through well-chosen practice problems.

Each grade consists of two semester sets to be completed in one year. For example, the complete first grade curriculum requires the 1A and 1B textbooks (non-consumable) and the 1A and 1B workbooks (consumable). Workbook assignments are directly correlated with each textbook. Small arrows, usually located in the lower left hand corner of a page, specify when to pause in the text and what exercise number to complete.

Brief teacher’s instructions are provided in each textbook’s preface, which I highly suggest reading. Although the pace of the course really depends on the individual student, 2-3 pages in the text is usually enough for one day’s lesson. To effectively use the textbook, the teacher should study the examples ahead of time in order to determine the best way to verbally explain a concept to the student. Teacher-student or student-student discussions are an important part of this program. Unfortunately, the text doesn’t tell you how to facilitate discussions. Fortunately, there are now Teacher Guides and Home Instructor Guides available for all levels.

Both the Teacher Guides and the Home Instructor Guides include answers to the textbook and workbook problems. Both of these publications help teachers understand the course material and provide suggestions to help you introduce concepts. As a general rule, the TGs are more oriented to the classroom while the HIGs are more geared to working one-on-one with a student. However, both provide detailed lesson plans. The TGs have daily lesson plans while the HIGs provide teaching segments indicating the number of weeks to spend per unit. A significant difference between the two is that the HIGs have a sidebar column that shows assignments complete with answers and often solutions. Assignments in the TGs are listed within the lesson plans and all answers are in the back of the book. Also included in the appendix of each are mental math worksheets and some teaching helps. Answers (but no solutions) to the U.S. edition textbooks and workbooks are also available in separate answer key booklets. For convenience, we have put together sets for each grade and semester that include the text, workbook and HIG.

TGs and HIGs both include lists of suggested manipulatives and materials. (please see our Singapore Math Manipulative category at the end of the Singapore Math section.

Extra practice sets are included in all textbooks, except first grade. These problem sets are optional and should be done only after the workbook exercises for that section have been completed. Cumulative review sections are also incorporated into the text, although not on a daily basis like Saxon. Review sections are also included in each workbook. Although these problem sets are optional, I would strongly suggest completing the extra practice. Some of the review sets are quite lengthy, and you might want to consider devoting a day’s lesson to review whenever a longer set arises. I suspect a key factor to this program’s success in Singapore is that students are both motivated and expected to practice their math skills through homework and optional problem sets use is strictly up to the teacher, although Primary Math tends to emphasize mental calculations.

While some believe that Primary Math contains “just the right amount of practice”, others believe not enough is provided. For students who feel they need more practice to really “own” a concept or skill, a variety of supplements, specifically designed to complement Primary Math, are available.

Compared to Saxon Math, Primary Math encompasses a narrower scope. While Saxon Math covers coordinate graphing, negative numbers, square roots, and probability, these topics are omitted from Primary Math and are not covered until New Elementary Math. The smaller scope, however, allows the program to emphasize the basics. Primary Math focuses on the four arithmetic operations (using whole numbers, fractions, and decimals), perimeter, area, volume, angles, quadrilaterals, symmetry, time, length, weight, money, graphs, and algebraic expressions (introduced in 6th grade). Saxon Mathmoves a bit slower introducing Algebra in Math 87. Miquon, which only covers grades 1-3, correlates very well with Primary Math.

Category Description for Singapore Math Programs:

Countries around the world first became interested in Singapore’s math curriculum when results of the Third International Math and Science Study (TIMSS) were published in 1995. Conducted by the International Study Center at Boston College, achievement tests in both math and science were administered to students in over 40 countries. Students from Singapore ranked highly in mathematics achievement: 1st in the fourth, seventh, and eighth grade levels and 2nd at the third grade level. Results for the U.S. were disappointing: 10th in the third grade, 11th in the fourth grade, 23rd in the seventh grade, and 27th at the eighth grade level. In a follow-up study in 1999, Singapore again ranked 1st in eighth grade math achievement while U.S. eighth graders ranked 19th. Although a first place ranking does not necessarily imply the best program, something about Singapore’s math program was working.

“Singapore Approach Math” is a general term referring to a type of mathematical instruction (i.e. curriculum) developed from a syllabus designed by Singapore’s Ministry of Education in the 1980s. There were a number of revisions and the 3rd edition was the last edition used in Singapore. The good test scores were associated with this material and all of our Singapore Approach Math programs are based primarily on the 3rd edition although it is no longer available for sale. Components from different editions are not interchangeable but a student can move between the editions in-between levels.

Primary Math US (1-6) is an adaptation of the 3rd edition for use in the U.S. Although a small amount of content (division of fractions) from the 2nd edition was added back into the US edition, it is almost identical to the 3rd edition. The US edition adds sections for U.S. customary measurements and uses U.S. spelling and conventions. We expect this edition to be available indefinitely. ©2003

Primary Math S/E (Standards Edition) (K-6) was adapted to meet the pre-Common Core CA math standards. An additional amount of content (probability, data analysis, negative numbers, coordinate graphing) from the 2nd edition was added back in and topics were rearranged but it is similar to the US edition. Cumulative Reviews at the end of each Unit and practice sets within each unit were added. Textbooks are in color. ©2008 This edition includes Earlybird Kindergarten Math.

Primary Math CC (Common Core) (K-5) is aligned to the Common Core State Standards and is another adaptation of the 3rd edition. Only minor changes were made to the scope and sequence. Unit Reviews are no longer cumulative and Practices were removed although some of the content was incorporated into the lessons. ©2014 Includes Earlybird Kindergarten Math CC. This edition will be available for the foreseeable future.

Primary Math 2022 Edition (K-5) is a completely new revision retaining all the excellent teaching methods of the earlier Primary Math programs. Incorporating both cumulative assessments and challenging problem solving, mastery learning is emphasized. The scope and sequence is similar to previous editions and topics are aligned to state and national standards. ©2021-2022

New Elementary Math (7-8) is a no-frills program based on an older Singaporian program and covering integrated algebra and geometry. It’s considered a sequel to the Primary Math programs.

Math in Focus (K-8) was developed by Great Source (a division of Houghton Mifflin Harcourt) in conjunction with Marshall Cavendish (the original publisher in Singapore). Although the basic instructional sequences are similar and the content is very close to the SE, material added to the most recent editions brings it into alignment with CC. Math in Focus has a more American look and “feel.” ©2010, 2014

View the Singapore Approach Math Comparison Chart.


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Why did you choose this?
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It is the next in the series for the curriculum we are using.
Rhea N on Jan 17, 2022
I used Singapore math last year and my kids really like it. It was easy to understand for them and easy for me to explain.
Esther G on Jun 3, 2021
It is the next in the series for the curriculum we are using.
Rhea N on Jan 17, 2022
Supplemental for 2nd grader
Iwona S on Jun 6, 2021
I used Singapore math last year and my kids really like it. It was easy to understand for them and easy for me to explain.
Esther G on Jun 3, 2021
We completed 1A and 1B and enjoyed them so we decided to buy 2A.
Falen P on May 3, 2021
Looking forward to moving ahead with this program. Year one was very positive.
Jessica G on Jan 16, 2021
I love the Concrete --> Pictorial --> Abstract approach Singapore Math uses; it really helps kids make sense of the mathematics!
Sarah E on Dec 20, 2020
We completed 1B, and my son now enjoys math. We look forward to working through the 2A set!
Jamey T on Dec 1, 2020
My son has quickly been working through Singapore Math 1A and now 1B we want him to keep going and this is the next step. I love the flexibility of ordering just what we need for right now and not an entire year's worth of math.
Chrissy F on Nov 19, 2020
We use this for Math in our home. My son has used it for the last five years, now my daughter is using it.
Shana J on Oct 21, 2020
I knew I wanted this curriculum.
Christy S on Aug 20, 2020
Consistent with the level of math my child's school was using. Also had good reviews.
Ivvanee M on Aug 5, 2020
Cathy Duffy Reviews
Jennifer M on Jul 29, 2020
A friend recommended Singapore Math, Primary 1-6 for my daughter who will be homeschooling this year. She has used this program for her 4 children and insists it helped them to progress more efficiently than other math curriculums she has tried.
Julie R on Jul 29, 2020
We used the 1A/1B set last year and were very happy with the curriculum. Plan to continue with 2A/2B this year.
Ann J on Jul 3, 2020
These items are on my son's 2nd grade book list for school.
Andreah G on Jul 3, 2020
It is the best price I could find. I love that it includes the whole set saving us time and money. We loved Primary Math US 1A and 1B!
Leah S on Jun 3, 2020
Has many good reviews and wanted a mastery math curriculum - not spiral
Molly B on Apr 29, 2020
Home Schooling and proud of it.
Raymond and Tammy H on Mar 27, 2020
Good quality, like the approach to math
Ingrid G on Aug 16, 2019
singapore 1a and 1b worked well for us last year, so we expect our daughter to do well with the next level up.
Monica on Jun 24, 2019
continuing primary math U.S. series with my 1st grader
Carrie B on Jun 17, 2019
I have been homeschooling for 5 years. My second son has never gone into public school and singapore math has put him in a very solid place with his math learning.
Emily D on Apr 25, 2019
This set is a few dollars less than buying the books separately.
Jennifer M on Jan 15, 2019
recommended by several people I know who homeschool
Kathleen H on Aug 29, 2018
We’ve been using this program since Kindergarten.
Peleaulani on Aug 16, 2018
Recommended by several sources
CONNIE C on Jul 24, 2018
We have completed Math U See Gamma, but I don't feel we are ready for the next level. I wanted to review concepts from addition, subtraction, multiplication, before moving onto division. This set came highly recommended from friends, so we are giving it a try.
Kristin M on Jul 2, 2018
I have a boy who does great in math, he is going into 2nd grade and will be using this. Also, my third grade girl who struggles with math will be doing this set as well.
A S on Jun 13, 2018
I love getting the bundle because it is cheaper and I know I am getting the books that go together. This is a major reason why I buy from rainbow resource, the bundles
Emily D on Apr 4, 2018
For math
Michele M on Feb 25, 2018
Like the curriculum
Amber M on Feb 9, 2018
We are continuing on in the series. The scope and sequence works well for my daughter.
Rebecca on Dec 1, 2017
Used Singapore math for 1st grade and loved it. It provides a firm math foundation.
Gabriela W on Jul 24, 2017
Singapore Math is the best for gifted leaners! The set is a great value!
Stephanie H on May 18, 2017
we like singapore and are finishing up 1b with one kiddo.
Sarah S on Apr 10, 2017
My son is nearly finished with the 1A set... and I am thoroughly impressed with what he has learned. Can't wait to continue on with the U.S. edition of Singapore Math!
Alicia C on Mar 18, 2017
Math curriculum that works well for our family
Kenneth R on Mar 9, 2017
we like the program
Kate B on Feb 11, 2017
I like the Singapore math
Felicita B on Jan 17, 2017
Recommended by "The Well-Trained Mind"
Donetta W on Dec 19, 2016
We are using it for my second grade homeschool student.
Melissa H on Nov 15, 2016
We've used Singapore math, Saxon math and Life of Fred. so far, Singapore math has been our favorite.
User on Oct 19, 2016
I am a home educator and we are doing well with Singapore Math.
ShaToina S on Oct 17, 2016
My daughter is doing great with Singapore math and I want to continue using it
Melissa M on Oct 10, 2016
It's what we are teaching
Jeremy D on Sep 25, 2016
Wanted to supplement our box curriculum and this was highly recommended.
Stephanie P on Sep 4, 2016
Used 1A and 1B with my son last year. He has had no trouble with it so far, and I like the method of teaching with this program.
Cynthia S on Aug 3, 2016
I used Primary Math in the past and find myself coming back to them again.
Nicole C on Jul 21, 2016
One of the best ranked math curriculums for home schoolers
Jessica B on Jul 19, 2016
Saxon Math wasn't working for my son, so I decided to try Singapore Math.
Sarah H on Jul 19, 2016
Supplemental for 2nd grader
Iwona S on Jun 6, 2021
We completed 1A and 1B and enjoyed them so we decided to buy 2A.
Falen P on May 3, 2021
4.8 / 5.0
8 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
We are loving Primary Math, and the set makes it complete and easy!
April 26, 2021
over 2 years ago
Rated 5 out of 5
Math homeschooling
We love the Singapore primary math curriculum. With it being sold out with other vendors, RR had our books in stock, shipped quickly and arrived in perfect condition. Will buy again!
December 5, 2020
over 2 years ago
Rated 5 out of 5
The best curriculum on the market
This is the best math curriculum in my opinion. My child is way ahead. Use you tube videos if you struggle on how to teach it.
October 19, 2020
over 3 years ago
Rated 5 out of 5
We are currently using this curriculum and it is a good fit for our family. It's easy to prepare to use with good amount of practice material.
September 15, 2017
over 6 years ago
Rated 5 out of 5
Liking this math program
My daughter started Singapore Math in first grade and since she is good at math, she really enjoys it. The lessons challenge her and I have started to see her do math in her head in everyday life. The only concern I have with 2A is the Home Instructor's Guide. The guide for 1st grade math was excellent but I have noticed a few mistakes in the 2A guide such as the wrong workbook lessons listed and wrong answers given in the answer key. You must pay close attention while using it. Also as a personal preference, I would have loved to see it spiral bound like the 1A and 1B Home Instructor Guides. Otherwise I love Singapore Math and plan on continuing using it. It is a great program.
April 8, 2017
over 6 years ago
Rated 3 out of 5
Parent intensive and confusing layout but content good
Its my first year homeschooling and having lived in Singapore and heard great things about Singapore maths I initially wanted to try Singapore Math for my 2nd, 4th and 6th graders. However just the placement tests caused significant stress for both my 4th and 6th grader - and me! I did further research and realized that most people who love Singapore Math start it in the early years. Its much harder to switch later. So I decided to use Saxon Maths for my 6th and 4th grader instead and only do Singapore Maths with my 2nd grader.

I am using Primary Mathematics 2A. I like the emphasis on mental mathematics, word problems and problem solving. Also we enjoy playing the games with cards, dice and counters and these are good learning experiences. I think it does challenge his problem solving abilities. However it requires a lot of my teaching and interaction with him - playing games with cards, dice, counters etc and walking through each lesson with him.

I find the layout very frustrating as it is not logical and consistent. You have to try and track from the Home Instructor's Guide to see which exercise numbers you are following in the Work Book and the Text Book and you are jumping from one book to another trying to figure out what to be doing. The numbers do not correlate and you can do part 1 of 1 exercise one day and part 2 and another entire exercise the next day. So the lesson number, exercise numbers and text book sections do not correlate and are inconsistent. For example I may be on Lesson 31 in the Home Instructor Guide, doing part 2 of exercise 24 and a completely different section and certain examples on one page in the text book - sometimes skipping forwards and backwards. I do not find the layout at all clear or logical we have found mistakes. It took me ages to figure it all out and I still find it very confusing!

It also seems to be very prescriptive in its approach to problem solving / mental math, rather than allowing a child to come up with their own strategies. I also feel its short on practice examples and they expect you to supplement.

Its also helpful to have base ten blocks, counters and place value charts and in future maybe other maths manipulative- I have made my own / bought these when I realized I needed them.

As for Saxon Maths for my older children - we love it. The layout is great and enables them to work really independently. The layout is very logical. They get a lot of practice - with maths facts every day. The repetition, which I was at first a bit skeptical about, does seem to really build their confidence. Even my 4th grader who is a reluctant student and normally needs a lot of coaxing to get his work done does his maths completely independently.

So going forward I am still not sure whether I will do Primary Mathematics 2B or switch to Saxon!
November 30, 2016
over 7 years ago
Rated 5 out of 5
Great math program
We have been loving Primary Math. We started with Saxon, but it's spiraled approach was far too slow for my son. I highly recommend the entire set with the Home Instructor Guides. For the first set we did not have it, and it adds so much value, with fun games and ideas to help reinforce what is being taught. All around, a great math program for those who need something faster-paced and with less repetition than Saxon.
November 19, 2016
over 6 years ago
Rated 5 out of 5
I have heard nothing but wonderful things about Singapore Math but as I began using the US Edition 1B and 2A levels I noticed all the problems were listed horizontally and the thought process was very "common core" which was one of the reasons I withdrew my kids from public school! Upon asking around I found out they aligned this book with Common Core without putting the "Common Core" label on it I am very disappointed in this book. Note: this edition of Singapore Math has a 2003 copyright which is long before the CCSS
August 2, 2015

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