Description

Brighten up a gloomy afternoon with this Rainy Day Math Mystery 4th Grade activity! ‘The Case of the Never-Ending Rain’ is a high-engagement math review that challenges students to fix a broken weather machine by mastering area of complex figures, decimals, and multi-step word problems.

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.

• 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.

Rainy Day Math Mystery 4th Grade Activity

To fix the Weather Control Board, students must unlock five clues by correctly solving a rigorous math review:

• Clue 1: Multiplication (Multiplying Double-Digit by Single-Digit numbers)
• Clue 2: Word Problems (Mixed operations: single-step and two-step problems)
• Clue 3: Data Analysis (Reading and interpreting Line Graphs)
• Clue 4: Area (Calculating the area of complex/rectilinear figures made of rectangles)
• Clue 5: Decimals (Comparing sets of three decimal numbers to find the largest)

Flexible for Any 4th Grade Classroom

Use this versatile math review packet for:

• Indoor Recess activities
• Emergency Sub Plans (just print and leave it on your desk!)
• Math centers or stations
• Homework or enrichment
• A fun break during testing season

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 the “Area” clue difficult?
A: Clue 4 focuses on finding the **Area of Complex Figures** (rectilinear shapes). This aligns with Standard 4.MD.A.3, where students must decompose shapes into smaller rectangles to find the total area. It is a great challenge!

Q: Are the word problems single-step or multi-step?
A: Both! Clue 2 includes a mix of single-step and **two-step word problems** involving all four operations. This encourages students to read carefully and choose the correct operation.

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 ‘Never-Ending Rain’ theme? This mystery is also available for other grade levels (great for differentiation)!

 

• 1st Grade Edition 
• 2nd Grade Edition
• 3rd Grade Edition

---

A complete answer key and printable awards are included!