{"product_id":"perimeter-and-area-csi-math-mystery-geometry-detective-activity-grades-3-5","title":"Perimeter \u0026 Area CSI Math Mystery Worksheets | Grades 3–5 | Geometry Wars","description":"\u003cp\u003eMake perimeter and area practice feel like a case worth cracking. This printable \u003cstrong\u003ePerimeter \u0026amp; Area CSI Math Mystery\u003c\/strong\u003e is designed for \u003cstrong\u003eGrades 3–5 classroom teachers, homeschool parents, and tutors\u003c\/strong\u003e who want focused geometry practice wrapped in a story students actually care about solving.\u003c\/p\u003e\n\u003cp\u003eStudents work through a series of clue pages, use their answers to eliminate suspects, and race to crack the case — all while getting meaningful practice with perimeter, area, and problem solving. No apps, no prep, no fuss.\u003c\/p\u003e\n\u003ch3\u003eQuick Details\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eGrade Levels:\u003c\/strong\u003e Grades 3–5\u003cbr\u003e\n\u003cstrong\u003eFormat:\u003c\/strong\u003e Printable PDF (includes US Customary and Metric versions)\u003cbr\u003e\n\u003cstrong\u003eResource Type:\u003c\/strong\u003e CSI Math Mystery worksheets\u003cbr\u003e\n\u003cstrong\u003eMath Skills:\u003c\/strong\u003e Perimeter of shapes, finding missing side lengths, area of quadrilaterals, and area maze puzzles\u003cbr\u003e\n\u003cstrong\u003ePages:\u003c\/strong\u003e 15+ pages including answer key\u003cbr\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Math centers, sub plans, early finishers, review, small groups, and homeschool math\u003cbr\u003e\n\u003cstrong\u003eTech Needed:\u003c\/strong\u003e None — no apps, locks, passwords, or student logins required\u003c\/p\u003e\n\u003ch3\u003eCase Summary\u003c\/h3\u003e\n\u003cp\u003eIt started with one careless mistake. A student called a shape by the wrong name, an argument broke out, and the disagreement spread — from the classroom to the playground and out into the streets — until the whole town was swept up in an all-out Geometry War.\u003c\/p\u003e\n\u003cp\u003eNow, in the middle of the chaos, a shape has gone missing. Someone took it... but who? And why? That's where your students come in.\u003c\/p\u003e\n\u003cp\u003eAs CSI Math Investigators, students measure perimeters, calculate areas, and work each clue to gather evidence and rule suspects out — one at a time — until only the culprit remains.\u003c\/p\u003e\n\u003cp\u003eCan your detectives crack the clues and expose the shape-napper before the Geometry War spirals out of control? Sharpen those pencils and open the case.\u003c\/p\u003e\n\u003ch3\u003eSkills Covered\u003c\/h3\u003e\n\u003cp\u003eStudents will practice:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCalculating the perimeter of shapes\u003c\/li\u003e\n\u003cli\u003eFinding missing side lengths using perimeter\u003c\/li\u003e\n\u003cli\u003eCalculating the area of quadrilaterals\u003c\/li\u003e\n\u003cli\u003eSolving area maze puzzles\u003c\/li\u003e\n\u003cli\u003eWorking in both US Customary and metric units\u003c\/li\u003e\n\u003cli\u003eUsing answers to eliminate suspects\u003c\/li\u003e\n\u003cli\u003eLogic, reasoning, and problem solving\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCSI-style perimeter and area mystery activity\u003c\/li\u003e\n\u003cli\u003ePerimeter and area clue pages\u003c\/li\u003e\n\u003cli\u003eSuspect elimination activity\u003c\/li\u003e\n\u003cli\u003eAnswer key\u003c\/li\u003e\n\u003cli\u003eUS Customary and Metric versions\u003c\/li\u003e\n\u003cli\u003ePrint-and-go PDF format\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBest Used For\u003c\/h3\u003e\n\u003cp\u003eThis printable CSI Math Mystery works well for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGeometry review before testing\u003c\/li\u003e\n\u003cli\u003eMath centers and early finishers\u003c\/li\u003e\n\u003cli\u003eSubstitute teacher plans\u003c\/li\u003e\n\u003cli\u003eSmall groups and independent work\u003c\/li\u003e\n\u003cli\u003eHomeschool math\u003c\/li\u003e\n\u003cli\u003eEnd-of-unit review\u003c\/li\u003e\n\u003cli\u003ePerimeter and area practice and reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61979243282802,"sku":"3799650","price":4.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/perimeter-area-csi-math-mystery-geometry-cover.jpg?v=1782470612","url":"https:\/\/kiwilandeducation.com\/products\/perimeter-and-area-csi-math-mystery-geometry-detective-activity-grades-3-5","provider":"Kiwiland Education","version":"1.0","type":"link"}