{"title":"Grade 3 Math: Geometry","description":"\u003cp\u003e3rd grade math worksheets and activities for geometry (Common Core 3.G): printable mystery worksheets, CSI cases and digital escape rooms.\u003c\/p\u003e","products":[{"product_id":"quadrilaterals-and-partitioning-shapes-mystery-detective","title":"Quadrilaterals and Partitioning Shapes | Mystery Detective | Grades 3–5","description":"\u003cp\u003eThis quadrilaterals pack for 3rd grade covers both geometry standards, classifying quadrilaterals and partitioning shapes, in ten CSI Mini Mystery Detective case files, math worksheets with a stained glass theme. Students sort squares, rectangles and rhombuses, spot the 2D shapes that aren't quadrilaterals at all, and split shapes into equal parts. It's 3.G.A.1 and 3.G.A.2 practice for math centers, morning work or homework. Early finishers can pick up a case too. There's no prep, and you get an answer key for every case.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eEvery shape is drawn on a dot grid. Students count the dots to compare side lengths and check for square corners with the corner of an index card, which keeps their classifying quadrilaterals work careful and concrete. They read a clue like \"a rhombus, not a square\", find the one shape that fits, and cross off the suspect with that number. They're checking their own answers as they go, and the last suspect left is the villain.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e10 one-page cases with 20 clues each, 200 clues in all\u003c\/li\u003e\n  \u003cli\u003eAn answer key for every case\u003c\/li\u003e\n  \u003cli\u003eNumbered shapes on dot grids, including tilted squares and rectangles\u003c\/li\u003e\n  \u003cli\u003eA reference page on quadrilaterals, square corners, rectangles and squares, rhombuses, shapes in more than one group, and equal parts\u003c\/li\u003e\n  \u003cli\u003eTeacher instructions, a contents page, a case log and a Shape Detective certificate\u003c\/li\u003e\n  \u003cli\u003e30 pages. It all prints in black and white\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Shattered Rose Window\u003c\/strong\u003e - quadrilateral or not\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Stolen Glass Cutter\u003c\/strong\u003e - squares and rectangles\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Fake Museum Window\u003c\/strong\u003e - finding the rhombuses\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Midnight Kiln\u003c\/strong\u003e - sides and square corners\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Missing Pattern Book\u003c\/strong\u003e - shapes in more than one group\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Twisted Tower Window\u003c\/strong\u003e - tilted and turned shapes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Uneven Panes\u003c\/strong\u003e - equal parts or not\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Secret Message\u003c\/strong\u003e - naming the unit fraction\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Painted Panes\u003c\/strong\u003e - shaded parts and unit fractions\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Grand Reopening\u003c\/strong\u003e - mixed review of both skills\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe first six cases are about quadrilaterals. Case 1 has students pick out the quadrilaterals from triangles, pentagons, hexagons and shapes whose sides don't close up. Squares, rectangles and rhombuses come next, one at a time. In Case 5 students find shapes that belong to more than one group, along with quadrilaterals that aren't rectangles, rhombuses or squares. Case 6 turns the shapes on the grid. Cases 7 to 9 are on partitioning shapes into halves, thirds, fourths, sixths and eighths, with every fraction written in words, and Case 10 brings both skills together. Use a case with a small group, keep a few for bell ringers or sub days, or save the last one for test prep. It also suits homeschool.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWritten for 3rd grade (3.G.A.1 and 3.G.A.2). 4th grade classes can use it to review shape names and equal parts before classifying shapes by their lines and angles in 4.G.A.2.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love Mystery Detectives\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEvery Mystery Detective pack works the same way. Once your class has solved one case, they know what to do with the next one, in this pack or any other. Each case also stands on its own, which means you can choose the one that fits what you're teaching that day. Naming the villain gives every page a clear end point, and the answer key lets you check a page quickly.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant more cases like these?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\"\u003ehttps:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":62593083408754,"sku":"18010530","price":4.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/quadrilaterals-3rd-grade-math-worksheets-partitioning-shapes-mystery.jpg?v=1792612410"}],"url":"https:\/\/kiwilandeducation.com\/collections\/math-3-g.oembed","provider":"Kiwiland Education","version":"1.0","type":"link"}