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MATH-100 · 4 lessons
Basic Mathematics for Economic Thinking
An original, step-by-step introduction to the mathematics used in introductory economics. Learn to keep track of units, compare quantities, calculate changes, solve simple models and interpret graphs. All prices, businesses and numerical scenarios in this course are invented teaching examples, not claims about actual markets.
No previous economics is required. You should be able to add, subtract, multiply and divide whole numbers. A basic calculator is useful; every method is explained before it is used.
Course outcomes
- Interpret quantities using units, fractions, ratios and rates.
- Distinguish percentage changes, percentage points and compounded changes.
- Solve and check linear equations and inequalities, including rearranged economic formulas.
- Read and construct straight-line graphs, identify feasible combinations and explain the limits of a graph.
Your lesson sequence
Lesson 1 · 70 minutes
Quantities, Units, Fractions and Ratios
Build a reliable language for quantities: attach units, convert measurements, calculate with fractions and divide totals in a stated ratio.
PDF slidesLesson 2 · 75 minutes
Percentages, Changes and Compounding
Calculate shares and changes, distinguish percentage points from percentage changes, and follow changes that build on earlier changes.
PDF slidesLesson 3 · 85 minutes
Variables, Equations and Economic Formulas
Translate short economic descriptions into algebra, solve linear equations and inequalities, rearrange formulas and check whether a solution makes sense.
PDF slidesLesson 4 · 85 minutes
Coordinates, Straight Lines and Feasible Regions
Connect algebra to a graph, calculate slopes and intercepts, identify combinations that satisfy constraints and separate a graphical pattern from a causal explanation.
PDF slides