{"product_id":"classifying-shapes-triangles-angles-csi-mystery-grades-4-6-geometry-wars","title":"Classifying Shapes, Triangles \u0026 Angles CSI Mystery Worksheets | Grades 4–6 | Geometry Wars","description":"\u003cp\u003e4th grade geometry CSI math worksheets on classifying triangles, missing angles and 3D shapes, timed for August and the first weeks back. Something is tearing through town leaving very precise damage, angles cut clean and lines snapped exactly where they ran parallel, and this CSI Mystery Detective geometry mystery has your students identify it from what it left behind. Every right answer rules one suspect out, and the whole case stretches easily into 5th grade review. Color and black-and-white pages with answer keys, ready to print. Along the way students classify angles and triangles, find a missing angle on a straight line, sort parallel from perpendicular, and complete a faces, edges and vertices table.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Case: Geometry Wars\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eSomething has been tearing through the district leaving very precise damage behind - angles cut clean, lines snapped exactly where they were parallel. Nobody has seen it properly, but it has left enough geometry behind to identify it. Your students take the measurements, work the angles, and read the map it left, and the description of the culprit builds one clue at a time until only one suspect fits.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eClassifying triangles by their angles and sides\u003c\/li\u003e\n  \u003cli\u003eFinding a missing angle on a straight line, using angles that sum to 180 degrees\u003c\/li\u003e\n  \u003cli\u003eIdentifying which line segments are parallel and which are perpendicular\u003c\/li\u003e\n  \u003cli\u003eFollowing mapping directions across a grid to uncover the next clue\u003c\/li\u003e\n  \u003cli\u003eCompleting a properties table for 3D shapes - faces, edges and vertices\u003c\/li\u003e\n  \u003cli\u003eFull color and black-and-white versions of every page\u003c\/li\u003e\n  \u003cli\u003eAnswer keys for the whole case\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mystery Detective Case?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eEvery CSI Mystery Detective case runs on one idea: solve, eliminate, repeat. The class is handed a crime and a page of math worksheets, and the answers cross suspects off until a single name is left. It is a math escape room with nothing to unlock and nothing to set up. Because the deduction only closes on correct arithmetic, detective activities get checked by the student rather than by the teacher. As a math activity it fills a lesson, sits in math centers, or runs itself as a sub plan.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eGeometry review covering several standards in one sitting\u003c\/li\u003e\n  \u003cli\u003eBack-to-school weeks and end of year review\u003c\/li\u003e\n  \u003cli\u003eMath centers, early finishers and independent work\u003c\/li\u003e\n  \u003cli\u003eEmergency sub plans that run themselves\u003c\/li\u003e\n  \u003cli\u003eWhole-class detective sessions, small groups or partner work\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBuilt for 4th grade and 5th grade. Fourth graders usually need a reminder about angles on a straight line before they start; fifth graders can run it independently. It also works for 6th grade students who need a geometry refresher covering triangles, angles and 3D shape properties in one go.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love CSI Mystery Detective Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eZero prep - print and hand out\u003c\/li\u003e\n  \u003cli\u003eSelf-checking by design, because a wrong answer breaks the deduction\u003c\/li\u003e\n  \u003cli\u003eSeveral geometry standards covered in one activity\u003c\/li\u003e\n  \u003cli\u003eWorks as a whole lesson, a center, or a filler for an awkward afternoon\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education for new detective cases, seasonal math activities and updates on discounts and new releases.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61951430066546,"sku":"4100995","price":4.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/geometry-wars-csi-mystery-detective-triangles-angles-3d-shapes-4100995.jpg?v=1792459395","url":"https:\/\/kiwilandeducation.com\/products\/classifying-shapes-triangles-angles-csi-mystery-grades-4-6-geometry-wars","provider":"Kiwiland Education","version":"1.0","type":"link"}