Description

Rise from the ashes and solve the case with this Perimeter Review Math Mystery 4th Grade activity! ‘The Case of the Phantom Phoenix’ is a high-engagement math review designed to practice calculating perimeter for basic and complex shapes, including finding missing side lengths.

It’s the perfect no-prep math activity! This resource is loaded with options, including an optional video hook and a fun ending video 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.

• Printable PDF Version: Just print the worksheets, staple, and go.
• Google Slides Digital Version: 100% paperless! Simply assign in Google Classroom. (Students must be in ‘edit mode’ to type).
• Easel by TPT: Complete the worksheets digitally for seamless online learning.

Perimeter Review Math Mystery 4th Grade Activity

To track down the mythical bird, students must unlock five clues by correctly solving these measurement challenges:

• Clue 1: Complex Shapes (Finding Perimeter of Complex Shapes with larger numbers and missing info)
• Clue 2: Floor Plans (Calculating Perimeter in a Floor Plan style layout)
• Clue 3: Problem Solving (Solving Perimeter Word Problems)
• Clue 4: Algebra (Finding the Missing Side Length when the total Perimeter is known)
• Clue 5: Application (Using Perimeter to Determine Cost – involves multiplying by whole numbers)

Flexible for Any 4th Grade Classroom

Use this versatile measurement worksheets alternative for:

• Reviewing Standard 4.MD.A.3
• Math centers or stations
• Homework or enrichment
• Your “early finisher” tub
• A lifesaver for your sub-tub!

Pacing & Timing

This is a comprehensive review that can take anywhere from 30 minutes to 2+ hours, depending on your students’ skill level. We recommend pacing it by one clue at a time.

Common Questions for this 4th Grade Math Review

Q: Is this Metric or Customary?
A: Both! We know schools use different systems, so the download includes separate versions for Metric units (cm, m) and Customary units (in, ft). You just print the one you need.

Q: How hard is the “Cost” clue?
A: Clue 5 is a rigorous application task. Students must calculate the perimeter and then multiply it by a price per unit (e.g., fencing cost). It helps students see the real-world application of math skills.

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 2-6 grade packs. We even have a blog post explaining how: learn how to differentiate here.

Other Grade Editions Available!

Love this ‘Phantom Phoenix’ theme? This mystery is also available for other grade levels (great for differentiation)!

• 3rd Grade Edition
• 5th Grade Edition

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A complete answer key and printable awards are included!