Description
Make your students the heroes of their own school with this Editable 2nd Grade Math Mystery! ‘The Case of the Missing Mascot’ is a revolutionary math review that allows you to customize the story details to match your classroom.
It’s the perfect no-prep math activity for school spirit weeks or general review! This resource is loaded with options, including an optional video hook (designed to work with ANY mascot) and a fun ending video to wrap up the case!
⭐ NEW: 100% Personalized Story Elements!
This is the only mystery that allows you to customize the story to feature your school’s specific mascot! While the math clues are fixed (so you don’t have to worry about the curriculum), you can easily edit the PDF form fields to instantly change:
- The Teacher’s Name: Make yourself the star!
- Your School’s Name: “Highland Elementary” becomes the setting!
- Your Mascot’s Name: Searching for “Bucky the Badger” or “Tommy the Tiger”? You decide!
- Suspect Names: Add your Librarian, Coach, Principal, or Nurse to the suspect list for hilarity!
Easy Prep for Print or Digital
This resource is designed to be low-prep for you and high-engagement for your students.
- Printable PDF Version: Enter your custom names, print, and go!
- Google Slides Digital Version: 100% paperless! Simply assign in Google Classroom. (Students must be in ‘edit mode’ to type).
2nd Grade Math Mystery Activity
To find the missing mascot, students must unlock five clues by correctly solving these Common Core-aligned challenges:
- Clue 1: Addition (Addition within 100 – No Regrouping)
- Clue 2: Measurement (Telling Time – Analog to Digital in 5-minute intervals)
- Clue 3: Place Value (Converting Expanded Form to Standard Form)
- Clue 4: Patterns (Skip Counting by 5s, 10s, and 100s)
- Clue 5: Fluency (Subtraction Fluency – Mental Math within 20)
Flexible for Any 2nd Grade Classroom
Use this versatile editable math activity for:
- School Spirit Week
- A fun “Friday Math” session
- Math centers or stations
- Homework or enrichment
- A lifesaver for your sub-tub!
Pacing & Timing
This is a comprehensive review that can take anywhere from 30 minutes to 60 minutes. We recommend pacing it by one clue at a time.
Common Questions for this 2nd Grade Math Review
Q: Does the video work if I change the mascot name?
A: Yes! The Video Hook is strategically designed to be “mascot neutral.” It sets the scene of a missing mascot without showing a specific costume, so it works perfectly whether you are the “Tigers,” the “Rockets,” or the “Dolphins”!
Q: Can I edit the Math Problems?
A: No, the math clues are fixed to ensure they meet 2nd Grade standards and correctly solve the code. Only the story names (School, Mascot, Suspects) are editable.
A complete answer key and printable awards are included!
Frequently Asked Questions & Extras 
- How long does a Math Mystery usually take to complete? Most of my mysteries are designed to take approximately 40–60 minutes. This can vary depending on whether students work individually or in pairs. Many teachers also love using them as a “Friday Fun” activity or breaking them up over two shorter sessions.
- Is there any prep involved? I know how busy you are, so I keep it “Print & Go.” There is no cutting, laminating, or complex setup required. Just print the clue pages and the opening story, and you are ready to start the investigation!
- What is a Math Mystery? How do I use them in the classroom or homeschool? <Check out this blog post to read more about how to use these teaching resources>
- Add extra motivation: Download the Mystery Record & Rank Chart FREEBIE HERE
- Looking for more 2nd-grade resources? Math Mystery Worksheets & Activity Sheets for Teachers
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