Dimensions Math is the current U.S. edition of Singapore Math from Singapore Math Inc., covering Pre-Kindergarten through Grade 8. Each level (for example, 1A and 1B for Grade 1) needs a Textbook, a Workbook, and — for most homeschools — a Teacher's Guide; Grades 7-8 use Teaching Notes and Solutions instead of a Teacher's Guide, and select grades add a Tests book. Placement is by skill, not age or school grade, so the fastest way to buy correctly is to place your child with a placement test first, then buy that level's Textbook + Workbook (+ guide) as a set.

Shop Dimensions Math (PK-8)

What's in a Dimensions Math level

• Textbook - introduces concepts with the Concrete-Pictorial-Abstract approach.
• Workbook - independent practice matched to the Textbook, consumable.
• Teacher's Guide (Pre-K-6) or Teaching Notes and Solutions (Grades 7-8) - lesson notes, pacing, and full solutions; the part most homeschool parents add first.
• Tests - available for select levels (for example Grade 2 and Grade 5) as an optional assessment supplement.

Grade-by-grade picks and prices

Each level's "A" part links above; the matching "B" part (second half of the year) is available on the same product page's collection and in the Singapore Math Inc. collection. Prices shown are per book, in USD, and may change; live prices always show on the product page.

How to choose the right level

Dimensions Math levels track mastery, not age or grade in your local school. Use a placement test (available from Singapore Math Inc.) before buying if your child is new to the program or switching from another curriculum - a child who tests strong in a public-school grade often places one Dimensions Math level below that grade in the first term, because the scope and sequence move faster and deeper. As a rule of thumb:

• New to Singapore Math, on grade level: start at the Textbook + Workbook for your child's current grade, part A.
• Switching mid-year: use a placement test rather than guessing from a grade label.
• First time teaching it yourself: add the Teacher's Guide (or Teaching Notes and Solutions for Grades 7-8) - it carries the mental-math strategies and full worked solutions the Textbook does not spell out.
• Want extra assessment: add the Tests book where available (currently Grades 2 and 5).

FAQs

Is Dimensions Math the same as Singapore Math?

Dimensions Math is the current U.S. edition published by Singapore Math Inc., built on the same Concrete-Pictorial-Abstract method as the earlier Primary Mathematics editions, with updated design and pacing for Pre-K through Grade 8.

Do I need the Teacher's Guide?

It is not required to complete the Workbook, but most homeschool parents find it useful for the first time they teach a level, since it explains the mental-math approach and includes full solutions.

What order do I buy the books in?

Buy the Textbook and Workbook for the "A" part of your child's placed level first, add the Teacher's Guide or Teaching Notes and Solutions if you're teaching it yourself, then move to the "B" part after finishing "A".