The workbook contains the independent work. Answers are found in the spiral-bound Standards Edition Teacher's Guides.
Primary Math Standards Edition was adapted to meet the pre-Common Core California math standards. No material from the Primary Math US edition was removed for the Standards Edition (SE), only rearranged between levels. A few units have been added primarily in probability and data analysis, negative numbers and coordinate graphing. A glossary of terms was added to each of the textbooks. In levels 2A through 5B there is now a cumulative review after most units in both the textbook and the workbook. 6A and 6B feature reviews after every other unit. Many of the units have a few pages that have been added in order to "reteach" a concept from an earlier level. There is some material that had been removed from the 2nd edition that has been added back in - some of the reteaching pages, additional pages on fractions and mental math learning tasks, along with some problems added to the reviews. Levels 3A through 6B are now in color.
As in the 3rd ed., you need both the textbook and the workbook. The textbook contains the learning tasks along with the practices and reviews that are to be done in class. The workbook contains the independent work. Please note that teacher materials for the U.S. Edition are not compatible with the Standards Edition.
The spiral-bound Standards Edition Teacher's Guides include answers to the Textbook and Workbook problems. Although the Teacher Guides are more classroom-oriented, they do provide detailed daily lesson plans that are adaptable for use with one student. Assignments in the Teacher Guides are listed within the lesson plans and all answers are in the back of the book. Both include lists of suggested manipulatives and materials and included in the appendix of each are mental math worksheets and some teaching helps. Teacher Guides also now include 12 months of access to Math Buddies, an online program created by Marshall Cavendish for practice and reinforcement.
Extra Practice books provide additional problems for A and B books at each level. ~ Janice
This has really helped my children to understand how numbers work. Not just for knowledge or memorization, but a deeper understanding of the why.
Singapore math is working well and produces results above the level marked on the book.
I like the visual and concrete introduction of abstract mathematical concepts. We also like the color illustrations in the coordinating textbook. This is good for my visual learner.
We have been using Primary Mathematics for years with our kids. It's a thorough math program.