🕵️♀️ Bring excitement and teamwork into your math lessons with this bundle of four Math CSI Mystery activities - one for each grade level: 3, 4, 5, and 6! Each mystery challenges students to use their math knowledge to solve clues, eliminate suspects, and crack the final case. These activities are perfect for end-of-year review, test prep, or just a fun way to reinforce key skills across the Common Core math standards. Your students will love becoming math detectives - and you’ll love seeing