6th Grade Back to School Math Mystery: ‘School Invaders’

$4.95

  • Back to School Math Mystery 6th Grade: solve the Case of the School Invaders with five math clue worksheets.
  • Key Skills: order of operations, coordinate graphs, multiplying numbers ending in zeroes, adding and subtracting decimals, and comparing fractions.
  • Print or Digital: printable PDF plus a Google Slides version.
  • Includes: optional video hook, ending video, printable awards, and a complete answer key.

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Description

Back to School Math Mystery 6th Grade: The Case of the School Invaders is a no-prep back to school math review for 6th Grade students. Kick off the new school year with this 6th Grade back to school math review! ‘The Case of the School Invaders’ is a high-engagement first week of school math activity that turns a 6th Grade review into an exciting case-solving mission. It’s ideal for assessing what students remember from 5th Grade, and it’s the perfect no-prep activity, loaded with options, including an optional video hook to set the stage.

The Story: The Case of the School Invaders

The stinky, slimy Geometron aliens are invading Mathhattan Elementary School and wreaking havoc all over the school! Students must review math skills from the previous grade to unlock the clues, then use their powers of deduction to narrow down the list of locations, find the aliens’ transponder device, and get rid of the invaders.

Set the scene with the optional video hook for the Case of the School Invaders on your whiteboard or screen, then wrap up the case with the ending video. Students solve the math worksheets to unlock clues and eliminate possibilities after each clue to crack the case.

Math Skills Required to Unlock Clues

There are five clues to crack to solve the mystery:

  • Clue 1: Order of Operations (Addition, Subtraction, Multiplication, Division)
  • Clue 2: Coordinates Graph (Whole positive numbers only)
  • Clue 3: Multiplying Numbers Ending in Zeroes
  • Clue 4: Adding and Subtracting Decimals (tenths, hundredths)
  • Clue 5: Comparing Fractions (Unlike Denominators and numerators)

Students must use critical thinking skills to work out what each clue is telling them to eliminate from the list of possibilities.

What is Included in this Math Mystery?

  • Optional video hook to introduce the case (watch it here).
  • Ending video to wrap up the case.
  • Printable PDF case file: the mystery story, list of possibilities, and five clue worksheets.
  • Google Slides digital version: 100% paperless. Assign it in Google Classroom. (Students must be in edit mode to type.)
  • Printable awards to celebrate your detectives.
  • Complete answer key.

Easy prep: Print the student pages, staple or place them in a folder, and your students are ready to start. Or assign the digital version for a paperless option.

6th Grade Back to School Math Review: Who It Is For

This edition is written for 6th Grade students and works in the first weeks of the new school year, as a review of the previous grade, or any time of year. Use it for:

  • A fun spiral review
  • Math centers or stations
  • Homework or enrichment
  • Your “early finisher” tub
  • A lifesaver for your sub-tub!

Pacing and Timing: Time to complete will vary anywhere between 30 minutes and 2 hours or more. It mainly depends on how familiar your students are with the math mystery format, and how difficult they find the math skills covered in the clues. Please check the skills above to help determine suitability for your class.

I recommend pacing this activity by giving students one clue at a time. Once the whole class has completed a clue, move on to the next clue, either within the same lesson or in the next math session. New math content presented? Make a lesson out of it by modeling the math before diving into the clue. I like to say, “We must learn something new before attempting the next clue.”

Two different 6th Grade Back to School mysteries: this School Invaders mystery is one of TWO different Back to School cases for 6th Grade. Each features a unique case and a different set of math skills. ‘Cursed Classrooms’ 6th Grade Mystery reviews fractions, multiplying decimals, and more.

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Easy Grade-Level Differentiation

The Case of the School Invaders is available in 6 grade editions. The story is the same; the math is different, so you can match each group to its level:

The 2nd-6th Grade editions can “clue swap” between editions to differentiate within one class. Grade 1 Math Mysteries are formatted for early learners and cannot be clue-swapped with the other grade versions. Read more: How to differentiate using Math Mysteries.

More Back to School Math for 6th Grade

Skills and Common Core Standards

  • 5.OA.A.1 – Use parentheses, brackets, or braces in numerical expressions, and evaluate expressions with these symbols (order of operations: addition, subtraction, multiplication, division (Clue 1))
  • 5.G.A.1 – Use a pair of perpendicular number lines (axes) to define a coordinate system; graph points (coordinates graph, whole positive numbers only (Clue 2))
  • 5.NBT.A.2 – Explain patterns in the number of zeros of the product when multiplying a number by powers of 10, and in the placement of the decimal point when a decimal is multiplied or divided by a power of 10 (multiplying numbers ending in zeroes (Clue 3))
  • 5.NBT.B.7 – Add, subtract, multiply, and divide decimals to hundredths (adding and subtracting decimals, tenths and hundredths (Clue 4))
  • 4.NF.A.2 – Compare two fractions with different numerators and different denominators (comparing fractions with unlike denominators and numerators (Clue 5))

Looking for more? The Case of the School Invaders is part of the 6th Grade Math Mystery Bundle, if you’d like a full set of resources in one place.

Not sure what a math mystery is? Read What is a Math Mystery? on my blog, or watch a short video about Math Mysteries.

Add extra motivation with the free Detective Rank Chart and Mystery Record. New to math mysteries? Try the free Case of the Super Bad Superhero first.

FAQ

Is this a good first week of school math activity for 6th Grade?

Yes! This has a fun “school invaders” theme, making it the perfect 6th Grade math review printable. It’s ideal for assessing what students remember from 5th Grade.

What skills does this mystery cover?

This is a comprehensive review of key skills. Students will practice order of operations, adding and subtracting decimals, comparing fractions, and graphing on a coordinate plane.

How long will this activity take?

Time to complete varies between 30 minutes and 2 hours or more, depending on how familiar your students are with the math mystery format and how difficult they find the math skills. I recommend giving students one clue at a time.

Is an answer key included?

Yes. A complete answer key is included, along with printable awards.

Can I use this with other grades?

Yes. The Case of the School Invaders comes in 6 grade editions with the same story and different math, so you can match the edition to your students.

Technical issues? See my Troubleshooting Tips and FAQ page, or email me at jjresourcecreations@gmail.com.

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Thank you!
Jacqui J.
Mrs. J’s Resource Creations

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