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

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

- Dimensions Math has the most robust and rigorous materials. The scope and sequence is similar to Primary Mathematics, with an updated look, and user-friendly Teacher’s guides. Teacher’s Guides include textbook and workbook pages with a colored answer overlay. It is aligned with most state standards and tests are available both in book form and online.

- The Common Core Edition is aligned to most state standards. Tests are available in book form and through the Primary Digital program, which is Adobe Flash-based. 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.)

- The 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 its age, still a great option. The Teacher’s Guides can be a challenge to work with if teachers need additional help with mathematics. Answer keys are provided as separate booklets.

Materials from the four 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 and Challenging Word Problems books even though they are aligned to different editions, as they have solid, rigorous problems from the most foundational topics.

**Dimensions Math Kindergarten (2017):**

- Teacher’s Guides A & B
- Textbook A & B
- Workbook A & B
- Tests

**Earlybird Kindergarten Mathematics (2015) Common Core Edition:**

- 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 (2007):**

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

*Which is best? Dimension Math provides the most supplemental activities within the Teacher’s Guides to support both parents and teachers. Few classrooms purchase both the Textbook and Workbook (or Activity Book) for every student. *

**Dimensions Math Pre-K (2017):**

- Teacher’s Guides A & B
- Textbook A & B
- Workbook A & B

**Dimensions Mathematics 6 – 8 (2014 – 2017):**

- Textbook A & B
- Workbook A & B
- Teacher’s Guide A & B

- Textbook A & B
- Workbook A & B
- Teaching Notes and Solution Guide A & B*

- Textbook A & B
- Workbook A & B
- Teaching Notes and Solution Guide A & B*

*For levels 7 and 8, note that the Teaching Notes are not a full Teacher’s Guide similar to levels Prek-6. They include minimal (1-2 pages) notes per chapter.

**Math in Focus 2020 (2019-2020)**

**Level K – 8:**

- Student Book A & B
- Teacher’s Edition A & B
- Extra Practice and Homework A & B
- Assessment

**Math in Focus 2018 (Also versions with 2010, 2013, 2015 imprints)**

**Level k – 8:**

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

If given a choice, I’d opt for Dimensions Math or Primary Mathematics.

Since 2008, Singapore Math Source has shared news, information, resources and more regarding the world’s best elementary math curriculum.

Thanks for visiting, enjoy and happy learning! Haba na haba, hujaza kibaba.

~ Cassy

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