Description

Are you looking for a fun and engaging way to keep your middle schoolers focused at the end of the school year? This easy-prep End of Year Math Mystery 8th Grade activity is the perfect solution! This resource helps beat the end-of-year slump by combining a thrilling detective case with a comprehensive math review, packing high-quality math worksheets with standards-based 8th Grade math skills.

🕵️ The Mystery Case: The Case of the Graduation Gremlins 🎓
Get your students engaged with a high-stakes investigation! In “The Case of the Graduation Gremlins,” students must use their math skills to eliminate places and find exactly where the Gremlins are hiding with all of the graduation items. Your students will be fully engaged and motivated by this fun detective story as they complete their math worksheets to save the celebration!

 

⭐ Math Skills Required to Unlock Clues

To crack the code and catch the Graduation Gremlins, students must apply their critical thinking and math skills across five targeted math worksheets:

• Clue 1 Math Worksheets: Writing Algebraic Expressions.
• Clue 2 Math Worksheets: Pythagorean Theorem: Find the Perimeter.
• Clue 3 Math Worksheets: Simplifying Expressions: Exponents.
• Clue 4 Math Worksheets: Find Missing Angles in Triangles.
• Clue 5 Math Worksheets: Solve Multi-Step Inequalities.

 

⭐ What is Included in this Math Mystery?

You will receive everything you need to run this fun math worksheets activity smoothly in your classroom:

• 🎬 Animated Video Hook: An engaging introductory video to set the scene, hook your students instantly, and create excitement!
• 📖 Printable Case File: An “EasyPrep” printable PDF with the hideout list, mystery story, and five clue math worksheets.
• 💻 Digital Version: Ready-to-go Google Slides™ digital worksheets perfect for paperless classrooms or centers.
• ✏️ Editable Hideouts List: Customize the game with an editable list, plus premade alternative lists to easily swap the original and keep students guessing (perfect if you want to replay the mystery)!
• 🕵️ Lead Detective Awards: Printable certificates to celebrate your students’ success!
• 🔑 Comprehensive Answer Keys: Detailed keys for fast, effortless grading.

 

⭐ Why Teachers & Students Love It

For Teachers: Say goodbye to overwhelming prep times during those chaotic final weeks of school! No complicated setup required. This math mystery is ideal for spiral review, consolidation, math centers, early-finishers, or the sub-tub.

For Students: It feels like a game, but there is significant math practice and consolidation involved. Middle schoolers are fully motivated by the process of elimination and the thrill of solving a real mystery!

Teacher Tip: Time to complete will vary between 30 minutes to 2 hours. I highly recommend pacing this activity by giving students one clue at a time. Once the whole class has completed a clue, then move on to the next clue!

 

⭐ Easy Grade-Level Differentiation

Need to adjust the difficulty for students working above or below grade level? This exact Graduation Gremlins math mystery case is available in multiple grade-level editions, allowing you to seamlessly “Clue Swap” across your classroom! Check out the other levels here:

• 1st Grade Edition (Note: 1st Grade cannot be clue-swapped with older grades)
• 2nd Grade Edition
• 3rd Grade Edition
• 4th Grade Edition
• 5th Grade Edition
• 6th Grade Edition
• 7th Grade Edition

For more ideas, activities, and resources, follow my store to stay updated on new releases. We can also stay connected via:

• Subscribe to my newsletter and blog
• Pinterest
• Facebook
• Instagram

Thank you!
Jacqui J.
Mrs. J’s Resource Creations © 2026