Description

Make every lesson personal with this 1st Grade Editable Math Mystery! ‘The Case of the Missing Mascot’ is a high-engagement personalized math activity that allows you to feature your own school’s mascot in the story.

It’s the perfect no-prep math activity! This resource is loaded with options, including an optional video hook and a NEW ending video (with voiceovers!) to wrap up the case!

Easy Prep for Print or Digital

This resource is designed to be low-prep for you and high-engagement for your students.

• Customizable PDF Version: Use the PDF form fields to enter your details, save, and print!
• Google Slides Digital Version: 100% paperless! Simply assign in Google Classroom. (Students must be in ‘edit mode’ to type).

1st Grade Editable Math Mystery: The Missing Mascot

To find the missing mascot, students must unlock five clues by correctly solving:

• Clue 1: Addition within 20 (supported by a number line)
• Clue 2: Subtraction within 20 (supported by a number line)
• Clue 3: Place Value: Tens and Ones (using Base Ten Block models)
• Clue 4: Comparing Double-Digit Numbers (up to 50)
• Clue 5: Word Problems (mixed addition and subtraction within 20)

Flexible for Any 1st Grade Classroom

Use this versatile customizable math worksheet for:

• A fun spiral review
• Math centers or stations
• Homework or enrichment
• Your “early finisher” tub
• A lifesaver for your sub-tub!

Common Questions for this Editable Resource

Q: What parts of the story can I personalize?
A: You can instantly edit the PDF to include: The Main Teacher’s Name, Your School’s Name, Your Mascot’s Name (e.g., Tiger), and the names of the Five Suspects (e.g., Coach, Principal, Nurse). The math clues remain fixed.

Q: Does the video hook work with my specific mascot?
A: Yes! The high-quality animation is strategically designed to work with any mascot name (the actual costume isn’t shown), so your personalization works perfectly with the video.

Q: What exactly is a Math Mystery?
A: It’s our high-engagement, multimedia math activity! Students solve 5 clues to crack a case, all while watching fun video hooks. You can learn more about math mysteries here.

Q: How does differentiation work with these?
A: That’s our secret weapon! Many of our stories are available for other grades, so you can “clue swap” with the 2-4 grade packs. We even have a blog post explaining how: learn how to differentiate here.

Looking for more 1st Grade adventures?

• • 🕵️‍♂️ Check out more 1st Grade Math Mysteries here!

  • 📚 You may also like to check out our Junior Reading Mysteries too!

A complete answer key and printable awards are included!