Make your May math block fun and beat the end-of-year slump with this captivating “Case of the Medieval MAY-Hem” Math Mystery! If you are looking for an engaging way to keep your students focused during the final weeks of school, this 2nd grade end of year math review uses a thrilling time-travel adventure to keep engagement high all month long!
It is the perfect end-of-year, medieval-themed math activity to practice measuring (inches and centimeters), 3-addend 2-digit addition, skip counting, telling time to the nearest 5 minutes, and identifying equal or unequal shape parts.
Get your students fully engaged with a high-stakes classroom investigation! “The Case of the Medieval MAY-Hem” is an exciting math mystery in which students solve clues to determine where to find a hidden Time Machine that is their only way to return home.
This packet serves as a targeted spiral review of late-spring 2nd Grade Common Core standards, making it the perfect engaging math center, summer slide prep resource, or whole-class review activity.
Clue 1: Measurement – Measuring objects to the nearest inch OR centimeter. A printable ruler is included directly on the page, and both US Customary and Metric options are provided in your download!
Clue 2: Adding Three 2-Digit Numbers – Developing operational fluency with 3-addend equations involving some regrouping.
Clue 3: Skip Counting – Practicing number patterns of 5s, 10s, and 100s to reinforce foundational place value and number sense.
Clue 4: Telling Time – Reading analog clocks to the nearest 5-minute interval.
Clue 5: Geometry & Partitioning – Identifying equal vs. unequal shape parts to give students a strong visual foundation for fractions.
Students read the introductory mystery story (or watch the animated video hook) to set the scene. They must complete the five math worksheets to unlock vital clues. Each solved clue helps them eliminate locations and variables from their suspect checklist until only the correct answer remains!
The final location left on the list is where they will successfully find the time machine. To celebrate, watch how the story ends with the included animated resolution video!
This resource is designed to be completely “Print & Go” to save you time during the hectic end of the school year.
Printable PDF: An “EasyPrep” design—just print, copy, and distribute! It’s an excellent option for your sub tubs.
Video Hook & Ending: Project the animated videos on a smartboard, tablet, or computer to set the stage and celebrate the final win. Check it out on YouTube <view here>.
Digital Google Slides™: A ready-to-go, paperless option included for 1:1 classrooms. (Please use ‘edit’ mode to enter answers).
Requires no extra props, setup, or planning. Just download and go!
Animated Video Hook & Ending: Set the stage with an exciting animated story and celebrate the win with a fun ending video (complete with professional voiceovers).
Dual-Option Printable PDF: Includes completely separate files for US Customary (Inches) and Metric (Centimeters) for Clue 1 so you can print exactly what your curriculum requires.
Google Slides: Seamless digital version included for paperless classrooms.
Teacher Answer Key: Detailed, visual keys for effortless grading or student self-checking.
Printable Detective Awards: Celebrate your students’ math success with printable “Lead Detective” certificates!
May Math Centers & Stations
2nd Grade End of Year Math Review & Spiral Review
Preventing the “Summer Slide” over vacation
Fun Friday Math Activities
Emergency Sub Plans (Easy Prep!)
Zero Prep Needed: Just print and solve!
Self-Checking Code Mechanics: The “Crack the Code” nature of the worksheets allows students to self-correct their math independently.
High Engagement: Even reluctant mathematicians love solving the clues and beating the end-of-year boredom. It feels like a game, but significant math practice and consolidation are involved.
Effortless Assessment: The format allows you to verify student progress at a single glance—if the location code is correct, their math calculations are correct.
This mystery is part of a multi-grade series, allowing you to easily “Clue Swap” for students working above or below grade level while keeping the storyline identical:
1st Grade Edition (Coming Soon)
2nd Grade Edition
3rd Grade Edition (Coming Soon)
4th Grade Edition (Coming Soon)
5th Grade Edition (Coming Soon)
6th Grade Edition (Coming Soon)
⭐ SAVE BIG with the complete collection! This resource is also included in the 2nd Grade Complete Math Mystery Bundle.
Looking for more seasonal spiral review packets? Check out these popular titles available in our shop:
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