{"title":"Grade 4 Math: Geometry","description":"\u003cp\u003e4th grade math worksheets and activities for geometry (Common Core 4.G): printable mystery worksheets, CSI cases and digital escape rooms.\u003c\/p\u003e","products":[{"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"},{"product_id":"lines-of-symmetry-mystery-detective-worksheets-grades-3-4-complete-the-figure","title":"Lines of Symmetry | Mystery Detective Worksheets | Grades 3–4 | Complete the Figure","description":"\u003cp\u003eLines of symmetry worksheets, complete the symmetrical figure activities and mirror image reflection practice for 3rd grade and 4th grade are all included in this printable geometry Mini Mystery Detective pack of math worksheets. Students look at half a figure shaded on a grid, flip it across the dashed line of symmetry — the fold line, the mirror line — and count the squares in the whole finished shape. It is the reflection half of a flips, slides and turns unit, drawn on grid paper so symmetry can be counted as well as seen. No cutting, no gluing, no technology, and completely no prep — just print and go.\u003c\/p\u003e\n\u003cp\u003eNothing in this pack is seasonal, so it drops into your year wherever symmetry lands: a 2D shapes and geometry unit, a transformations and reflections lesson, spring test prep, or end-of-year review. Use it for math centers and stations, morning work and bell ringers, fast finishers, small group and intervention, homework, or a day you need something a substitute can hand out cold. Black and white, ink friendly, PDF, with a full answer key for every case.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompleting a symmetrical figure across a vertical line of symmetry, then counting every square in the finished shape\u003c\/li\u003e\n  \u003cli\u003eCompleting a figure across a horizontal line of symmetry, so students reflect up and down as well as side to side\u003c\/li\u003e\n  \u003cli\u003eReflecting a figure that sits on the right of the fold, so the reflection runs the other way — the half of symmetry a left-only worksheet never asks for\u003c\/li\u003e\n  \u003cli\u003eSpotting the squares that have no matching square yet on a figure somebody started copying and left half finished\u003c\/li\u003e\n  \u003cli\u003eA final mixed case where the line of symmetry can run down the grid or across it, with the shaded half on either side\u003c\/li\u003e\n  \u003cli\u003eCounting squares in a figure to find its total, so the geometry doubles as unit-square area practice\u003c\/li\u003e\n  \u003cli\u003eFull answer keys for every case, with the completed symmetrical figure shaded in on the grid — not just the number, so students can see exactly where a count went wrong\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFive cases to crack: The Mirror Mural, The Missing Halves, The Flipped Lab Tray, The Backwards Banner and The Canteen Cut-Outs.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is a Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA no-prep detective activity where students solve math problems to cross off suspects and unmask the culprit. Skill practice plus critical thinking in one engaging, self-checking worksheet set — an escape room without the locks, boxes or setup.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGeometry, 2D shapes and transformations units\u003c\/li\u003e\n  \u003cli\u003eReflections, flips and mirror image lessons\u003c\/li\u003e\n  \u003cli\u003eMath centers, stations and rotations\u003c\/li\u003e\n  \u003cli\u003eMorning work and bell ringers\u003c\/li\u003e\n  \u003cli\u003eFast finishers and independent work\u003c\/li\u003e\n  \u003cli\u003eSub days — a substitute can hand it out cold\u003c\/li\u003e\n  \u003cli\u003eHomework and extra practice\u003c\/li\u003e\n  \u003cli\u003eSmall group, RTI and intervention\u003c\/li\u003e\n  \u003cli\u003eSpiral review, test prep and end-of-year revision\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDesigned for 3rd grade and 4th grade, and used across upper elementary. The cases get harder as they go, so the same pack scaffolds struggling 5th graders and stretches confident 2nd graders. The grid means it also works for ELL and ESL students and for special education, RTI and intervention groups — nothing has to be read to be solved.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love Mystery Detectives\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eZero prep — print and hand out. No cutting, no gluing, no technology, no laminating\u003c\/li\u003e\n  \u003cli\u003eSelf-checking: a correct page leaves exactly one suspect standing, so students catch their own mistakes\u003c\/li\u003e\n  \u003cli\u003eThe detective hook keeps students working through a full page of geometry\u003c\/li\u003e\n  \u003cli\u003eEvery figure sits on a grid, so students who cannot yet picture a reflection can count their way to it\u003c\/li\u003e\n  \u003cli\u003eBlack and white and ink friendly — it photocopies cleanly\u003c\/li\u003e\n  \u003cli\u003eAnswer keys that show the finished figure drawn in, so marking takes seconds and students can self-correct\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more Mystery Detectives, geometry activities, and detective-themed stories for elementary classrooms.\u003c\/p\u003e\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":62264571658610,"sku":"17499652","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/lines-of-symmetry-complete-the-figure-mystery-detective-geometry-worksheets-grade-3-4-17499652.jpg?v=1792461527"}],"url":"https:\/\/kiwilandeducation.com\/collections\/math-4-g.oembed","provider":"Kiwiland Education","version":"1.0","type":"link"}