Back to School Math Mystery 4th Grade Activity: ‘Cursed Classrooms’

Description Kick off the year with this Back to School Math Mystery 4th Grade activity! ‘The Case of the Cursed Classrooms’ is a high-engagement math review designed to assess student retention of 3rd Grade standards like rounding, multiplication facts, and regrouping. 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. Back to School Math Mystery 4th Grade Activity To break the curse, students must unlock five clues by correctly solving a review of key prior-year skills: Clue 1: Addition (Adding 3-digit numbers with regrouping) Clue 2: Rounding Numbers (Rounding to the nearest 10 and 100) Clue 3: Multiplication Fluency (Review of facts 1-12) Clue 4: Subtraction (Subtracting 3-digit numbers with regrouping) Clue 5: Ordering Numbers (Arranging numbers up to 1,000) Flexible for Any 4th Grade Classroom Use this versatile math review alternative for: A fun “First Week of School” icebreaker A diagnostic assessment to see what they remember from 3rd grade Math centers or stations 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: Why are the skills focused on 3rd Grade content? A: We designed this specifically for the **Beginning of the Year**. It reviews critical 3rd-grade concepts (like rounding and 3-digit operations) to build student confidence and help you assess their retention before diving into the harder 4th-grade curriculum. Q: Is this a good diagnostic tool? A: Yes! By observing students solve these clues, you can quickly identify who has mastered **regrouping** and **multiplication facts** and who might need early intervention. 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 ‘Cursed Classrooms’ theme? This mystery is also available for other grade levels (great for differentiation)! 1st Grade Edition  2nd Grade Edition 3rd Grade Edition 5th Grade Edition 6th Grade Edition 7th Grade Edition  8th Grade Edition  A complete answer key and printable awards are included!