Description

Freeze the invasion with this Winter Math Mystery 3rd Grade activity! ‘The Case of the Snowman Army’ is a high-engagement math review that helps students tackle challenging concepts like equivalent fractions and multiplying by multiples of 10 while defending their school from a snowy siege.

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.

Winter Math Mystery 3rd Grade Activity

To melt the Snowman Army, students must unlock five clues by correctly solving a targeted winter math review:

• Clue 1: Mixed Multiplication (Fluency check with facts 1-12)
• Clue 2: Telling Time (Reading clocks to 5-minute intervals)
• Clue 3: Equivalent Fractions (Finding missing numerators to create pairs)
• Clue 4: Multiplying by Multiples of 10 (e.g., 4 x 60)
• Clue 5: Pattern Sequences (Identifying rules and continuing patterns)

Flexible for Any 3rd Grade Classroom

Use this versatile winter math worksheets alternative for:

• A fun “January Blues” breaker
• 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 3rd Grade Math Review

Q: Is this appropriate for introducing Equivalent Fractions?
A: Yes! Clue 3 focuses on filling in missing numerators to make fractions equivalent. It is great practice for this tough 3rd-grade standard, though we recommend teaching the concept first before using this as a review.

Q: What is “Multiplying by Multiples of 10”?
A: This aligns with Common Core Standard 3.NBT.A.3 (e.g., 5 x 40). It’s a crucial skill for building place value understanding before moving to 2-digit multiplication.

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 ‘Snowman Army’ theme? This mystery is also available for other grade levels (great for differentiation)!

• 1st Grade Edition
• 2nd Grade Edition
• 4th Grade Edition
• 5th Grade Edition
• 6th Grade Edition
• 7th Grade Edition 
• 8th Grade Edition 

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A complete answer key and printable awards are included!