Singapore Math/Primary Mathematics
Publisher: SingaporeMath.com, Inc. This is one of my 102 Top Picks! 
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Singapore Math/Primary Mathematics
See the complete review in 102 Top Picks for Homeschool Curriculum.
Everyone has heard how well foreign students, including those from Singapore, do in math compared to U.S. students. But few people understand why this is so. You will have a better idea of why they excel if you check out the Primary Mathematics program for the elementary grades. Primary Mathematics was first published (in English) for students in Singapore, so it was also called Singapore Math when it was first brought to the U.S. in 1998. Homeschoolers are much more likely to refer to it as Singapore Math rather than as Primary Mathematics.
Primary Mathematics has taken the homeschool market by storm, and with good reason. This program teaches children to think mathematically rather than just having them memorize the mechanics of problem solving. Primary Mathematics lays a solid foundation for conceptual understanding using a threestep process, taking children from concrete, to pictorial, then abstract approaches to learning. Concepts are addressed from a number of directions that challenge students to think and understand.
Primary Mathematics is more advanced than just about every other math program used in the U.S. There are three different versions: the U.S. Edition that was adapted directly from the version used in Singapore but substitutes U.S. measurements, spellings and conventions; the Standards Edition that aligns with the math standards for California, changing the order of presentation for some topics and adding units on topics such as probability, graphing, data analysis, and negative numbers; and the Common Core Edition, which slightly reorganizes topics to cover those required by the Common Core State Standards (CC). None of these are “dumbed down” to align with standards.
The question that arises is which of these editions to choose. The scope and sequence remains challenging for all three versions. A comparison chart at www.singaporemath.com/v/PMSS_comparison.pdf shows where each of the CC standards is taught in each edition. On that chart, you can see that Primary Mathematics continues to teach some standards at earlier grade levels than is required by the CC. Common Core Editions add a few very specific topics, and they review many topics at different levels to satisfy the Common Core. Consequently, those editions have more pages than others.
Standards and Common Core Edition textbooks as well as textbooks 1A through 2B in U.S. Editions are printed in full color while the rest of the U.S. editions are printed in two colors. (All workbooks are printed in black and white.) Color might be important for some learners, but the cost is significantly higher for Standard and Common Core Editions with text and workbook prices ranging from about $14 to $20 each compared to about $12 each for workbooks or texts in the U.S. Edition.
All editions have periodic reviews. While U.S. and Standards Editions have cumulative reviews, the Common Core Editions do not. In the textbooks, concepts are taught thoroughly and sequentially within units rather than in a spiral fashion. The cumulative reviews are the primary means of reviewing previouslytaught concepts since they are not addressed again in future units. With the Common Core Editions, the publisher wanted to allow teachers to skip units if they so desire, but to do that the publisher had to limit review to only what has been taught in each unit. Parents can create their own cumulative review by having students complete selected problems from each review, then revisiting problems from previous units at a later date. The supplemental Extra Practice books might also be used to create your own cumulative review.
The Primary Mathematics series has levels 1 through 6 which cover material for approximately grades one through six and beyond. The Common Core Editions have only levels 1 through 5. Each level has two textbooks, two workbooks, and two teacher's or home instructor's guides labeled A and B—that's four student books per course....
Correlated workbook exercises are indicated at the end of each textbook lesson. Children should be able to work through workbook exercises independently once they can read directions without a problem.
While each level of U.S. and Standards Editions has both teacher's guides and home instructor’s guides available (with the exception of Standards Edition levels 6A and 6B), the home instructor's guides are designed specifically for homeschoolers, are less expensive, and are what I recommend. You do not need both....Common Core Editions have only teacher's guides right now (no home instructor's guides), and these are the only teacher's guides that include reduced pictures of student pages, a very helpful feature. Both the home instructor’s guides and teacher's guides have lesson plans, teaching instructions, and answer keys.
The program requires oneonone teaching throughout most lessons for the younger grades....
Singapore Math Inc.® carries a number of supplemental books, many of which are keyed to the Primary Math series. Extra Practice books correlate directly with each level of each edition. Check their website for more information.
Placement tests are available at their website. If your child is not starting at the beginning of the program, it is vital that you use the placement test to determine the appropriate level. Important note: It is not unusual for a child to place one or two levels below their official grade level.
Primary Mathematics 1A and 1B
Book 1A begins with an assumption that children already have a basic sense and recognition of numbers. It begins with counting to 10, but by the fourth unit of the first book, students are learning subtraction. Singledigit multiplication is introduced in 1B, with division introduced very briefly immediately after. (Students are not expected to memorize multiplication facts yet.)
The text stresses conceptual understanding over mathfact drill at this level. (Drill suggestions are given in the guides, but you might want to provide opportunity for more practice with math facts using other resources.) Practical applications are used in lesson presentation and word problems. In addition to the arithmetic operations, this first level teaches ordinal numbers, shapes, measurement, time telling, money, and graphs.
Primary Mathematics 2A and 2B
The second level teaches addition and subtraction with renaming (carrying and borrowing), multiplication and division, place value, measurement, money, introduction of fractions, writing numbers in words, time telling, graphs, and very introductory geometric shapes and area.
Primary Mathematics 3A and 3B
This level has more advanced work on the four arithmetic operations including long division, fractions (equivalent fractions plus adding), measurement, graphs, time, and geometry. It also teaches twostep word problems and mental calculation. It will be challenging for most students to begin this program at the third level if they have been using a different math program. However, the pictorial lessons do help students pick up concepts they might not have been taught previously. Make sure that if you are just starting this program, you watch for this problem, and provide the necessary teaching before expecting your child to do the lessons.
Primary Mathematics 4A and 4B
At the fourth level, students learn all four functions with both fractions and decimals. Geometry coverage is also very advanced as students compute the degrees of angles and solve complex area and perimeter questions. Students also work with advanced whole number concepts (e.g., factors, multiples, rounding off), money, other geometric concepts, graphs, and averages. Primary Mathematics introduces twodigit multipliers at this level but doesn’t really concentrate on twodigit multipliers and divisors until the fifth level. While students complete quite a few computation problems, the number of word problems seems to gradually increase at this level.
Primary Mathematics 5A and 5B
At the fifth level, students do advanced work with decimals plus multiplication and division with twodigit multipliers and divisors. They learn to work with percents and continue with advanced work on fractions, geometry, and graphs. Time and rate word problems, as well as other types of word problems, are given a great deal of attention. There are more word problems than drill type problems. Some of the geometry taught at this level is rarely introduced before high school level. For example, students learn to calculate the degrees of angles in a parallelogram given the measurements of only two angles.
Primary Mathematics 6A and 6B
Because of this series’ advanced scope and sequence, at the sixth level much of the work is more typical of other publishers’ high school level texts. Students work with fractions, but a typical problem requires students to perform three different operations on four different fractions within a single problem, much like an advanced algebra type problem, although without variables. Common geometry problems are set up in proofstyle format, although you need not require students to present their solutions in that format.
Among other concepts covered at this level are graphs, algebraic expressions, geometry (e.g., radius, diameter and circumference of circles plus the volume of solids), advanced fractions, ratio, percents, tessellations, and lots of word problems including time/rate/distance problems. It might be challenging for parents with a weak math background to use this level without some assistance.
Extra Practice Workbooks
Extra Practice
The Primary Mathematics series has an Extra Practice workbook for each course. These are exactly what they sound like—a source for additional practice if it is needed.
There are sets of Extra Practice books for U.S., Common Core, and Standards editions, and you need to choose them to fit with the edition you are using—they are not interchangeable. All Extra Practice books are printed in black and white. They include illustration such as those in the textbooks, even though they are not in color. Answer keys are at the back of each book.
Extra Practice workbooks for the Common Core editions are substantial with about 200250 pages per book. They briefly reteach the key concepts covered in the corresponding unit in a section called "Friendly Notes." The presentation in Extra Practice is different from that in the texts, so this might be especially helpful if a child hasn't really understood the lesson. Friendly Notes are followed by one or more exercises. Exercises are generally each two or more pages in length. While many units have about two exercises per unit, especially at lower levels, I did spot units with five and six exercises each. There are generally more exercises per unit at higher levels.
Extra Practice workbooks for the Standards editions are very similar to those for the Common Core editions. Extra Practice workbooks for the U.S. editions are about half the size of the Common Core versions. They do not include reteaching material. Instead they have lots of practice problems.
Extra Practice books can be used as needed rather than on a regular basis. It is easy to identify which sections you might use to either review the presentation of the concepts and/or to practice those concepts.
Challenging Word Problems
See my separate review of the Primary Mathematics Challenging Word Problems series.
Pricing
Primary Math US 1A Textbook
 $10.00 at Amazon.com
 $5.40 Used at Amazon.com Marketplace
 $11.80 List Price at Christianbook.com
 $11.80 at Christianbook.com
 $11.80 at Rainbowresource.com
Primary Math US 1A Workbook
 $11.80 at Amazon.com
 $7.73 Used at Amazon.com Marketplace
 $11.80 List Price at Christianbook.com
 $11.80 at Christianbook.com
 $11.80 at Rainbowresource.com
Primary Math US 1A Home Instructor Guide
 $21.28 at Amazon.com
 $17.89 Used at Amazon.com Marketplace
 $18.50 List Price at Christianbook.com
 $18.50 at Christianbook.com
 $18.50 at Rainbowresource.com
Primary Mathematics Workbook 3A Standards Edition
 $19.00 at Amazon.com
 $19.00 Used at Amazon.com Marketplace
 $16.00 List Price at Christianbook.com
 $13.60 at Christianbook.com
 $16.00 List Price at Rainbowresource.com
 $13.60 at Rainbowresource.com
Primary Math US 5A Textbook
 $8.00 List Price at Amazon.com
 $11.00 at Amazon.com
 $9.41 Used at Amazon.com Marketplace
 $11.80 List Price at Christianbook.com
 $11.80 at Christianbook.com
 $11.80 at Rainbowresource.com
Primary Math US 5B Textbook
 $8.00 List Price at Amazon.com
 $10.00 at Amazon.com
 $5.44 Used at Amazon.com Marketplace
 $11.80 List Price at Christianbook.com
 $11.80 at Christianbook.com
 $11.80 at Rainbowresource.com
Primary Mathematics Textbook 2A Standards Edition
 $13.98 at Amazon.com
 $3.21 Used at Amazon.com Marketplace
 $19.50 List Price at Christianbook.com
 $15.20 at Christianbook.com
 $19.50 List Price at Rainbowresource.com
 $15.20 at Rainbowresource.com
Primary Mathematics Textbook 3A Standards Edition
 $16.64 at Amazon.com
 $9.50 Used at Amazon.com Marketplace
 $22.00 List Price at Christianbook.com
 $17.30 at Christianbook.com
 $22.00 List Price at Rainbowresource.com
 $17.30 at Rainbowresource.com
Primary Mathematics Textbook 4A Standards Edition
 $13.69 at Amazon.com
 $12.90 Used at Amazon.com Marketplace
 $22.80 List Price at Christianbook.com
 $17.90 at Christianbook.com
 $22.80 List Price at Rainbowresource.com
 $17.90 at Rainbowresource.com
Primary Mathematics Workbook 3B Standards Edition
 $13.49 at Amazon.com
 $1.23 Used at Amazon.com Marketplace
 $16.00 List Price at Christianbook.com
 $13.60 at Christianbook.com
 $16.00 List Price at Rainbowresource.com
 $13.60 at Rainbowresource.com
Singapore Math: Primary Math Workbook 1A US Edition
 $11.80 at Amazon.com
 $7.73 Used at Amazon.com Marketplace
 $11.80 List Price at Christianbook.com
 $11.80 at Christianbook.com
Singapore Math Primary Math Intensive Practice U.S. Ed 1A
 $10.76 Used at Amazon.com Marketplace
 $10.80 List Price at Christianbook.com
 $10.80 at Christianbook.com
 $10.80 at Rainbowresource.com
Singapore Math Primary Math Intensive Practice U.S. Ed 1B
 $10.80 List Price at Christianbook.com
 $10.80 at Christianbook.com
 $9.85 Used at Amazon.com Marketplace
 $10.80 at Rainbowresource.com
Primary Mathematics Extra Practice 2 Common Core Edition
 $20.00 Used at Amazon.com Marketplace
 $16.00 at Rainbowresource.com
 $16.00 List Price at Christianbook.com
 $16.00 at Christianbook.com
Singapore Math Primary Math Intensive Practice U.S. Ed 3A
 $10.80 List Price at Christianbook.com
 $10.80 at Christianbook.com
 $10.80 Used at Amazon.com Marketplace
 $10.80 at Rainbowresource.com
Singapore Math Primary Math Intensive Practice U.S. Ed 4A
 $10.80 at Rainbowresource.com
 $10.80 List Price at Christianbook.com
 $10.80 at Christianbook.com
 $10.20 Used at Amazon.com Marketplace
Primary Mathematics Extra Practice 1 Common Core Edition
 $20.00 Used at Amazon.com Marketplace
 $16.00 List Price at Christianbook.com
 $16.00 at Christianbook.com
 $16.00 at Rainbowresource.com
Instant Key
 Learning modalities: all, but depends on teacher assistance
Suitable for: oneonone plus independent work
Audience: grades 17
Need for parent/teacher instruction: varies by age and ability
Prep time needed: none to minimal
Teacher's manual: Home Instructor's Guides very helpful past level 2
Religious perspective: secular
Publisher's Info

SingaporeMath.com, Inc.
404 Beavercreek Road #225
Oregon City, OR 97045
(503) 5578100
email: customerservice@singaporemath.com
www.singaporemath.com
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