*Which edition do I want?* It’s a common question from schools adopting a Singapore Math® curriculum. Here’s the lowdown on all the editions:

** Primary Mathematics Common Core Edition Grades 1 – 5 components:**

- Teacher’s Guides A & B
- Textbook Parts A & B
- Workbook Parts A & B
- Assessments 1-3 now available! (April 2017)
- Extra Practice*
- Challenging Word Problems*

**
Primary Mathematics Standards Edition Grades 1 – 6 components:**

- Teacher’s Guide Parts A and B
- Textbook Parts A & B
- Workbook Parts A & B
- Extra Practice*
- Challenging Word Problems*
- Tests Part A & B

**
Primary Mathematics U.S Edition Grades 1 – 6 components:**

- Teacher’s Guide Parts A and B
- Textbook Parts A & B
- Workbook Parts A & B
- Extra Practice*
- Challenging Word Problems*
- Intensive Practice*

*Supplemental

*So which is best? That’s for you to decide.*

-The Common Core Edition is aligned to most state standards. Tests are available through the Primary Digital program. Teacher’s Guides include textbook and workbook pages. They also provide deeper explanation of how the math works and how to explain it to students.

-The Standards Edition is aligned to California State Standards from 2007. (Can’t see much use for these right now).

-U.S. Edition is the least changed from what made Singapore tops on the TIMSS. It’s aligned to the Singapore Syllabus circa 2001 and despite it’s age, still a great option. It’s what I’d choose to use.

Materials from the three programs are not interchangeable. It would be difficult to use the Standards Edition tests with the Common Core Edition. That being stated, many schools use the Intensive Practice books with the Common Core materials even though they are aligned to the U.S. Edition, as they have solid, rigorous problems from the most foundational topics.

**Earlybird Kindergarten Mathematics Common Core Edition consists of:**

- Textbook Parts A & B (Includes Math at Home activities)
- Activity Book Parts A & B
- Teacher’s Guide Parts A and B & Teacher’s Resource Pack

**Earlybird Kindergarten Mathematics Standards Edition components:**

- Textbook Parts A & B (Includes Math at Home activities)
- Activity Book Parts A & B
- Teacher’s Guide Parts A and B & Teacher’s Resource Pack
- Posters
- Big Books (Also available as Readers)

*Which is best? Here are the major changes:*

-The Common Core Edition is aligned to most state standards.

- Units on Numbers to 30 and Time were removed from the Standards Edition to the Common Core Edition
- Units on Length, Weight and Capacity were combined into one unit on Measurement

-The Standards Edition is aligned to California State Standards from 2007.

- Has awesome Nursery Rhyme Readers/Big Books, which you could use with either series, but lessons on them are only included in the Standards Edition Teacher’s Guides

**Dimensions Mathematics Common Core 7 – 8 (Grade 6 coming 2015) components:**

- Textbook (hard or soft cover)
- Workbook
- Teaching Notes

**Math in Focus Grades k – 8 consists of:**

- Student Book Parts A & B
- Workbook Parts A & B
- Teacher’s Edition Parts A and B
- Extra Practice
- Assessment
- Reteaching
- Enrichment
- School-to-Home Connections Book

If given a choice, I’d opt for Primary Mathematics. Read my comparison of Primary Mathematics v. Math in Focus for the full story.

*Scridb filter*