Valentine’s Day Math Project: Whodunit?

This Valentine’s Day math project involves a heartbreaking crime. Someone has been causing trouble and stole all the students’ candy. The authorities are stumped and need your help!

Valentine’s Day Whodunit is a seasonal math project that requires students to use math and logic to eliminate suspects and solve a crime. They’ll use their knowledge of addition, subtraction, multiplication, coordinate graphing, and patterns to sort through clues, analyze fingerprints, build a puzzle, decode secret messages, and determine if witnesses are being truthful or not.

Check it out here! This Whodunit is perfect for early finishers or for groups during your Valentine’s Day class party or math block. There is also a digital option that is 100% paperless.

Valentine's Whodunit math project puzzle
Valentine's Day math project logic game

Valentine's Day Math Project hidden message

Students will complete the seven steps of this resource to identify who is innocent and who is guilty of the crime. 

Review of Important Math Concepts:

  • Addition
  • Subtraction
  • Multiplication
  • Coordinate graphing
  • Logic
  • Line plots


  1. My students loved this resource! We have not had too much of a chance to review previous units in math class this year, so going back to multiplication and coordinate graphing was engaging and fun for my students to revisit in this game!

    1. Kristine Nannini says:

      Thank you so much, Taylor! I’m so glad to hear this!

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