Math in Our World: A Quantitative Reasoning Approach: 2026 Release

Unit 1. Mathematical Reasoning and Problem Solving
Lesson 1-1: Inductive and Deductive ReasoningLesson 1-2: Estimation and Interpreting GraphsLesson 1-3: Problem-Solving Strategies
Unit 2. Consumer MathLesson 2-1: Review of Percents
Lesson 2-2: BudgetingLesson 2-3: Simple Interest
Lesson 2-4: Compound Interest
Lesson 2-5: Installment Buying
Lesson 2-6: Education and Home Loans
Lesson 2-7: Stocks and BondsLesson
2-8: Income Taxes
Unit 3. Probability
Lesson 3-1: Basic Probability
Lesson 3-2: Sample Spaces and Counting Techniques
Lesson 3-3: Combinatorics
Lesson 3-4: Probability Using Counting Techniques
Lesson 3-5: Odds and Expected Value
Lesson 3-6: Addition Rules for ProbabilityLesson 3-7: Multiplication Rules and Conditional Probability
Lesson 3-8: Binomial Probabilities
Unit 4. Statistics
Lesson 4-1: Gathering and Organizing DataLesson 4-2: Representing Data Graphically
Lesson 4-3: Measures of Average
Lesson 4-4: Measures of Variation
Lesson 4-5: Measures of Position in a Data Set
Lesson 4-6: Normal Distributions and Z Scores
Lesson 4-7: Applications of the Normal Distribution
Lesson 4-8: Correlation and Regression AnalysisLesson 4-9: Misuses of Statistics
Unit 5. Math ModelingLesson 5-1: Ratios and Proportions
Lesson 5-2: The Basics of Graphing FunctionsLesson 5-3: Modeling with Linear FunctionsLesson 5-4: Modeling with Quadratic FunctionsLesson 5-5: Linear and Quadratic RegressionLesson 5-6: Modeling with Exponential and Log Functions
Unit 6. Set Theory
Lesson 6-1: The Basics of Working with SetsLesson 6-2: Operations on Sets
Lesson 6-3: Studying Sets with Two-Circle Venn Diagrams
Lesson 6-4: Using Sets to Solve Problems
Unit 7. Logic
Lesson 7-1: Statements and Quantifiers
Lesson 7-2: Truth TablesLesson 7-3: Types of Statements in LogicLesson
7-4: Evaluating Logical Arguments
Unit 8. MeasurementLesson 8-1: Unit Conversion, Length, and the Metric System
Lesson 8-2: Measuring Area, Volume, and Capacity
Lesson 8-3: Units of Weight and TemperatureLesson 8-4: Evaluating Efficiency in PackagingUnit 9: Voting Methods (ONLINE ONLY)
Unit 10: Graph Theory (ONLINE ONLY)
Unit 11: Numeration Systems (ONLINE ONLY)