Number Sense
Count, Compare, and Order
Math workbook
Math
From counting and place value to fractions, algebra, geometry proofs, statistics and calculus. There are books from kindergarten to intro college.
Grades K–2
Place Value
Tens and Ones
Addition within 20
See It, Build It, Solve It
Subtraction within 20
Take Away and Compare
Measuring Length
Units, Tools, and Estimates
Grades 3–5
Multi-Digit Addition
Place Value and Regrouping
Multi-Digit Subtraction
Place Value and Regrouping
Multiplication
Groups, Arrays, and Facts
Division
Equal Groups, Sharing, and Remainders
Fractions
Parts, Sets, and Number Lines
Adding and Subtracting Fractions
Like Units, Common Units, Mixed Numbers
Decimals
Place Value, Compare, and Calculate
Area and Perimeter
Build, Measure, and Explain
Grades 6–8
Multiplying and Dividing Fractions
Models, meaning, and methods
Ratios and Unit Rates
Tables, diagrams, and fair comparisons
Percentages in Everyday Problems
Parts, wholes, change, and claims
Integer Operations: From Number Lines to Rules
Number lines, counters, and patterns
Expressions and One-Variable Equations
Variables, equivalence, and balance
Statistics: Describe and Compare Data
Displays, center, spread, and fair comparisons
Grades 9–12
Linear Equations and Graphs
Tables, slopes, equations and systems
Quadratics: Patterns, Graphs, and Solutions
Tables, forms, methods, and models
Geometry Proofs: Build a Logical Argument
Givens, reasons, congruence, and similarity
Right-Triangle Trigonometry
Sine, cosine, tangent and indirect measurement
Probability: Model Chance and Evaluate Risk
Chance models, conditional data and risk
Intro College
College Algebra: Functions and Graphs
Domains, composition, inverses, and models
Calculus: Limits and First Derivatives
Tables, graphs, algebra and rates
Intro Statistics: Sampling and Inference
Study design, sampling variation, intervals and tests
About the math books
In the K–5 books, learners use models and real objects before symbols. Most of the math books say which book to use next, and Choosing a book shows the order.
Work in pencil. Draw the model before you calculate, even when you know a rule. Estimate first, then check that your answer makes sense.