{"product_id":"addition-subtraction-times-tables-csi-mystery-grades-2-5-where-is-the-alien-teacher-from","title":"Addition, Subtraction \u0026 Times Tables CSI Mystery | Grades 2–5 | Where Is the Alien Teacher From?","description":"\u003cp\u003eAddition and subtraction with regrouping within 100 power these alien CSI math worksheets, a CSI Mystery Detective case for 2nd grade and 3rd grade. Subtraction with regrouping gets the heaviest practice, plus a few early multiplication facts. Use it in April, when 3rd grade math needs a fresh reason to be careful. The new teacher at the front of the room has too many eyes, and the math on the board is the only evidence. Nothing to cut or set up, just print in color or black and white. Students decode a space map and follow a planet trail, ruling out a suspect with every correct answer, and answer keys cover the whole mystery.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Case: Meet My Alien Teacher\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIt is the first day of a new school year, and you have spent the whole summer wondering who you are going to get. You bolt your breakfast, get to class early, and there is something not quite right about the person standing at the front. The skin. The number of eyes, if you count properly. Your students have one morning to work out exactly what their new teacher is, and the only evidence is the math left on the board.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eUsing a key to decode a secret message from letters on a space map\u003c\/li\u003e\n  \u003cli\u003eAddition and subtraction within 100, checked for errors against a tally\u003c\/li\u003e\n  \u003cli\u003eMultiplication used to color the correct star and arrow to the next clue\u003c\/li\u003e\n  \u003cli\u003eAddition along a planet trail where the running total settles the clue\u003c\/li\u003e\n  \u003cli\u003eA letter grid circled by multiplication answers, then unscrambled\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\u003eGive a class a crime, a suspect list and a page of math worksheets and you have a CSI Mystery Detective case. The answers do the work: each correct one removes a name until only the culprit remains. It is a math escape room in everything but the hardware - no locks, no app, no prep. Detective activities also carry their own marking, because a wrong answer stops the case closing at all. Run it as a full math activity, drop it into math centers, or keep it for 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\u003eThe first weeks back at school, when you want the math to feel like fun\u003c\/li\u003e\n  \u003cli\u003eRegrouping review before or after a unit test\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 2nd grade and 3rd grade. Second graders usually work the regrouping pages in pairs; third graders can run the case independently. It also suits 4th grade students who need addition and subtraction review in a form that does not look like going back a year.\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\u003eA back-to-school activity that still does real math\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":61981880877426,"sku":"4697618","price":4.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/alien-teacher-addition-subtraction-times-tables-mystery-detective-grades-2-5-cover-4697618.jpg?v=1792459386","url":"https:\/\/kiwilandeducation.com\/products\/addition-subtraction-times-tables-csi-mystery-grades-2-5-where-is-the-alien-teacher-from","provider":"Kiwiland Education","version":"1.0","type":"link"}