CSI Math Activities: Mystery-Based Math Investigations for Every Grade Level
CSI math activities turn math practice into a mystery investigation where students solve problems to uncover clues and identify the culprit.
Instead of routine worksheets, students work through six crime scenes. Each correct answer reveals new evidence that helps them determine the suspect, weapon, or location.
These detective-style math investigations are designed for elementary math through Algebra 2 and Pre-Calculus.
What are CSI Math Activities?
CSI math activities use a detective-style investigation format. Students solve mathematical problems to uncover clues and solve the case.
Each activity contains six crime scenes. As students solve equations or analyze data, they obtain values that help eliminate suspects and identify the culprit.
This structure creates a goal-driven learning experience where students stay motivated because every problem moves them closer to solving the mystery.
Elementary CSI Math Activities
- Addition & Subtraction Problem Solving
- Multiplication & Division Problem Solving
- Measurement & Conversion
- Fractions
- Shapes, Area & Perimeter
- Decimals & Place Value
- Lines & Angles
- Representing Data
- Input Output Tables
Pre-Algebra CSI Math Activities
- Factors, Primes & Multiples
- Advanced Decimals
- Advanced Fractions
- Operations & Expressions
- Ratio, Proportion & Percent
- The Coordinate Plane
- Exponents, Roots & Scientific Notation
- Data Analysis & Probability
- Equations & Inequalities
Algebra CSI Math Activities
- The Real Number System
- Variables & Expressions
- Solving Equations
- Inequalities & Absolute Value
- Relations, Patterns & Functions
- Lines
- Systems of Equations
- Monomials & Polynomials
- Factoring & Quadratics
Geometry CSI Math Activities
- Shapes, Lines & Angles
- Area
- Transformations
- Deductive Reasoning & Proof
- Similarity & Proportion
- Triangles
- Trigonometry
- Volume & Surface Area
- Circles
Algebra 2 & Pre-Calculus CSI Math Activities
- Conic Sections
- Matrix Algebra
- Radical Functions & Complex Numbers
- Families of Functions
- Exponential Functions & Logarithms
- Rational Functions
- Polynomial Functions
- Advanced Trigonometry
- Sequences & Series
Why Math Mystery Activities Work
Mystery-based math activities motivate students by giving them a clear objective: solve the case.
- Students stay engaged through the investigation
- Problem solving becomes meaningful
- Collaboration naturally develops
- Math practice feels purposeful instead of repetitive
Explore More CSI Classroom Activities
These activities are part of our larger collection of CSI classroom activities, where students solve mysteries while practicing academic skills. Each subject uses a similar investigation format so students stay engaged while applying what they’ve learned.
If you’re new to the CSI series, start with the full overview here: CSI Classroom Activities.
You may also want to explore CSI activities in other subjects: