Whodunnit Math Activities: Turn Math Review into a Classroom Mystery
Whodunnit math activities transform math review into a mystery investigation where students solve problems to uncover clues and identify the criminal.
Instead of completing traditional worksheets, students answer math questions that reveal clues about the criminal, the location, and the method. By the end of the activity, they must piece together the evidence to solve the case.
With dozens of topics available across elementary math through precalculus, Whodunnits allow teachers to turn almost any math unit into a collaborative mystery. The topics below highlight some of the most popular investigations used in classrooms.
What are Whodunnit Math Activities?
Whodunnit math activities combine academic practice with a mystery-solving game.
Students solve a set of math problems, and each correct answer reveals clues or eliminates suspects. By the end of the activity, students must determine:
- Who committed the crime
- Where the crime occurred
- What method was used
This turns math practice into a logic puzzle where every question helps students move closer to solving the mystery.
Elementary Whodunnit Math Activities
Elementary Whodunnits help students practice foundational math skills while solving a mystery.
- Place Value
- Basic Operations
- Fractions
- Decimals
- Measurement
- Geometry Basics
Pre-Algebra Whodunnit Math Activities
Pre-Algebra Whodunnits reinforce key middle school math concepts while keeping students engaged in solving the mystery.
- Integer Operations
- Order of Operations
- Exponents
- Ratios and Proportions
- Probability
- Statistics
Algebra Whodunnit Math Activities
Algebra Whodunnits allow students to practice solving equations and analyzing functions while uncovering clues.
- Linear Equations
- Inequalities
- Systems of Equations
- Polynomial Operations
- Factoring
- Quadratic Equations
Geometry Whodunnit Math Activities
Geometry Whodunnits challenge students to apply geometric reasoning while working through the mystery.
- Pythagorean Theorem
- Angles and Triangles
- Similarity and Congruence
- Area and Volume
- Trigonometry Basics
Algebra 2 & Precalculus Whodunnit Activities
Advanced Whodunnits bring mystery-solving to higher level math topics.
- Radical Expressions
- Logarithms
- Rational Functions
- Exponential Functions
- Trigonometric Functions
These examples represent just a portion of the available mysteries. Explore the full library of investigations covering many more math topics.
Why Whodunnit Math Activities Work
- Students stay engaged because they want to solve the mystery
- Every math problem reveals a clue
- Activities encourage logical reasoning and deduction
- Review feels like a game instead of a worksheet
More Mystery and Puzzle Math Activities
If your students enjoy solving math mysteries, you may also like these other interactive math activity formats. Each uses a different style of investigation or puzzle to make math practice more engaging.
Escape Room Math Activities – Students solve math puzzles and unlock clues in a collaborative escape room challenge.
CSI Math Activities – Students investigate crime scenes and solve math problems to uncover clues and identify the criminal.