{"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\/products\/lines-of-symmetry-mystery-detective-worksheets-grades-3-4-complete-the-figure","provider":"Kiwiland Education","version":"1.0","type":"link"}