Home > Dimensions Math PK-5
The Curriculum

The Dimensions Math® PK-5 series is designed to better serve U.S. teachers and students. We’ve updated aspects of Singapore math curriculum for clarity and relevance, while preserving the solid foundation that makes it unique.The series follows the principles outlined in the Singapore Mathematics Framework and uses the Concrete > Pictorial > Abstract approach. The curriculum also incorporates Singapore mental math strategies and model drawing.

In the Dimensions Math program, concepts are introduced and explained in a new format with vibrant imagery. The implementation of this curriculum suits today’s needs, while the progression and scope that define Singapore math remain intact. The role of the educator is very important in this curriculum.

Dimensions Math lessons begin with a task that gives students a chance to learn through discussion and apply their previous knowledge. They make connections to prior lessons and approach each new idea with the confidence that comes from a deep understanding of mathematics. The lessons progress with systematic variation. After students learn a variety of strategies, they are given increasingly complex problems to apply their knowledge.

The Components

Throughout the series, five recurring characters convey new information and ideas, offer suggestions on how to think about problems, remind students of strategies they’ve learned, and point out important information to encourage students to come up with their own solutions.

Textbook lessons begin with a problem for students to solve, setting the stage for discussion. Students who need additional support can spend more time working with manipulatives or using other strategies as outlined in the Teacher’s Guide, while teachers can listen for common misunderstandings and encourage students to solve problems in various ways until they internalize concepts.

Once students have mastered a concept with the use of concrete and pictorial aids, they are ready to take on more abstract mathematical problem sets. They reach fluency by collecting various strategies along the way.

Finally students work through word problems that give them a sense of real-world application of math. Students use the strategies they learned in earlier phases to both understand and solve these problems.

Workbooks offer independent practice while maintaining the careful progression of exercise variation. Nearly all textbook lessons have a corresponding workbook exercise.

The teacher’s guide is designed to assist in planning daily lessons. It should be considered a helping hand between the curriculum and the classroom. It provides introductory notes on mathematical content, key points, and suggestions for activities. It also includes ideas for differentiation within each lesson, and answers and solutions to textbook and workbook problems.

Online resources are available at

  • Videos of children's songs (PK and K)
  • Letters Home
  • Lesson Material Lists
  • Blackline Masters
  • Preview of lesson flow across textbook, workbook, and teacher's guide

Tests books will be available in late 2019.

Look & Feel

Visit Sample Pages for examples of Dimensions Math textbooks, workbooks and teacher’s guides.

Similarities with Primary Mathematics

Dimensions Math 1-5 follows the same Singapore math approach as Primary Mathematics 1-6. It emphasizes the Concrete to Pictorial to Abstract progression. It encourages the use of bar models to solve word problems, and the mastery of mental math to gain number sense, computational fluency, and logical thinking.

The problem-solving processes of the learning tasks deepen and broaden understanding of concepts (in contrast to the method of simply following an example to solve a similar problem).

There is minimal vocabulary and textual information. Concepts are conveyed primarily through images and careful sequencing.

Differences between Dimensions Math and Primary Mathematics

The Dimensions Math program is a cohesive PK-5 series. It is an updated version of the Singapore math approach that includes more teacher-friendly materials.

Grades PK-K include specific visualization activities and provide suggestions for small group and center work. Lessons in grades 1-5 are well-defined and follow a consistent sequence. They begin with a problem for discussion, move to an explanation of the concepts, introduce vocabulary, and provide various approaches to solving the problem. This is followed by a set of learning tasks that extend the concept, ending with a set of problems to assess understanding. The series provides guidance on hands-on components.

Overall, this curriculum is more demanding than most. Textbooks and workbooks include additional problems. Workbook exercises are differentiated and include basic problems, practice problems, and challenging problems.

The Dimensions Math teacher’s guides are in full color and include reduced-size copies of the textbook and workbook pages for easy reference to every lesson. The guides give more ideas for differentiation and include math literature suggestions.

Meet our team

The Dimensions Math curriculum is written by teachers and professional development providers with more than 100 years of combined experience in Singapore math. They have firsthand knowledge of what works well and what can be challenging in that environment.

The result of their collaboration is a curated sequence of lessons that allows teachers to give their students the best elementary math education possible.

Singapore Math is a registered trademark of Singapore Math Inc. and Marshall Cavendish Education Private Limited.
Dimensions Math is a registered trademark of Singapore Math Inc.