Most people who buy my Blue Series books use them for many different purposes: as a supplement to a main curriculum, for review, or for initial teaching, even to teach adults. They are selfteaching worktexts that concentrate on one or a few topics per book, which makes them suitable for various teaching scenarios.
I have not originally written the Blue Series books to be a complete curriculum, but you can use them as such. The books are actually complete for grades 17, and even cover a few topics for 8th grade (Pythagorean Theorem; linear equations).
People have frequently asked me in what order the books should be studied. The following is an outline or suggestion for the study order of the books.
Books  Notes 
GRADE 1  
Addition
1 Subtraction 1 Place Value 1 
You could study Addition 1 and Place Value 1 somewhat simultaneously, or back and forth, and after those, go into Subtraction 1. The focus is on tens and ones, concept of addition, concept of subtraction, and memorizing basic addition/subtraction facts within 010 
GRADES 12  
Parts of: Clock Money Measuring 1 Early Geometry Introduction to Fractions 
The clock, money, and measuring books span about three grade levels (grades 13), and you can decide to study these topics in between various books, however you like. Introduction to Fractions is approximately for grades 24 and Your student can go through some of the first lessons from the fractions book. 
GRADE 2  
Add & Subtract 2A Add & Subtract 2B Place Value 2 Data and Graphs 
The first two books deal with different aspects of adding and subtracting within 0100, and are best studied in this order. Place Value 2 is about hundreds, tens, and ones. Data and Graphs is for grades 25, and your student can go through some of the first lessons from it. 
GRADE 3  
Add
& Subtract 3 Multiplication 1 Division 1 Place Value 3 
These books are specifically for grade 3. They can be studied in any order, except the student needs to study Multiplication 1 before Division 1. 
Rest of: Clock Money Measuring 1 Early Geometry 
These books span about three grade levels (grades 13), and you may decide to study these topics in between various other books, however you like. 
Introduction
to Fractions Data and Graphs 
Introduction to Fractions is approximately for grades 24 and Data and Graphs for grades 25. You can go through some of the middle lessons in these two books. 
GRADE 4  
Add & Subtract 4 Place Value 4 Multiplication 2 Division 2 Decimals 1 
These books deal with addition and subtraction terminology & strategies, decimals, problem solving, graphs, long multiplication and long division. They are all about 4th grade level. 
Introduction to Fractions Data and Graphs 
Introduction to Fractions is approximately for grades 24. Have your student study the latter part of this book. Data and Graphs for grades 25. The student can go through some of the middle lessons in this book. 
Measuring 2 Geometry 1 
These two books are fairly independent of the others, and can fit into many places. The material is for grades 45. 
GRADE 5  
Multiplication Division 3 Fractions 1 Fractions 2 Decimals 2 Place Value 5 The Four Operations (with a Touch of Algebra) 
With the exception of the Four Operations book (it's for grades 56), these books are for grade 5. The order of study is a suggestion only. You could study these topics in several different orders, or even simultaneously. 
The rest of: Measuring 2 Geometry 1 
These two books are for grades 45. 
GRADES 67  
The Four Operations (with a Touch of Algebra) Fractions & Decimals 3 Percent Ratios, Proportions & Problem Solving Geometry 2 Statistics & Probability 
These books are suitable for 6th7th grade, and can be studied in any order, or even sidebyside simultaneously. The book Fractions & Decimals 3 goes through all of fraction and decimal arithmetic, quicker than the fraction and decimal books listed before, and with more decimal digits and larger denominators. Before studying Geometry 2 or Statistics & Probability, the student should know the basics of percent. 
Expressions & Equations Integers Rational Numbers Linear Equations Geometry 3 
These three books are suitable for 6th7th grades and cover prealgebra topics. They are best studied in the order presented here. The student has to be able to solve simple equations before studying the Pythagorean Theorem in Geometry 3. 
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