6th Grade Christmas Activity - Christmas Math Mystery : Zombie Elves CSI

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This Christmas Math Mystery, the 'Case of the Zombie Elves' (6th Grade Edition) will add an exciting twist to your math sessions. Easy prep! Just Print & Solve! Or go paperless with the new Google Slides option provided within your download.

NEW - Distance Learning Update: I've added a Word Document within the folder that contains a Google Doc link to share this resource with your students via Google Classroom or Drive. Parts of the pages are editable so that your students can complete without having to print the pages. Please note, you will need to make a copy of the Google Slides to your drive before you can edit.


There is an optional Video Hook available to introduce this activity to your students in a fun way:

>> CLICK HERE TO VIEW Case of The Zombie Elves VIDEO HOOK! <<

Students must use their math skills to eliminate possibilities so they can discover the correct cure for the zombie virus plaguing the North Pole!



- No Prep required! Print the student pages, staple or place

in a folder, and your students are set to go.

- Have the video hook ready for viewing at the start of the

lesson on an IWB, iPad or computer monitor screen.


Math Skills Required to Unlock Clues

There are five clues to crack to solve the mystery:

Clue 1: Adding Integers (-10 to 10) Number line provided

Clue 2: Dividing Decimals by Whole Numbers

Clue 3: Convert Units of Measurement – Customary (in, ft, yd) and Metric (cm, m, km) Options are provided to choose from.

Clue 4: Divide Whole Numbers by Fractions (with models for most of the questions)

Clue 5: Percent to Fraction Conversion (simplifying fractions required)

Students must use critical thinking skills to figure out what the clue is telling them to eliminate from the list of possible cures.


Multiple Uses

- Suitable for independent, pairs, or group work.

- Use as part of your math centers, add to your sub tubs, make it part of your early finisher tasks, give for homework, or make it part of your classroom practice/review sessions.

I recommend pacing this activity by giving students one clue at a time. Once the whole class has completed a clue, then move on to the next clue either within the same lesson or 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."


How long will this activity take?

Time to complete will vary anywhere between 30mins - 2 hours or more! It mainly depends on how familiar your students are with the math mystery format, as well as how difficult they find math skills covered in the particular mystery. Please check the math skills outlined in the clues above to help determine suitability for your class.


Want different math skills?

The Case of the Zombie Elves is available in the other Grade editions listed below. Click to check out the math skills covered in each packet.

Differentiation and Important Note about the other Grade Editions when the Mystery is the SAME Story Title:

The clues are the same in the other grades if the mystery story is the same. The math is what is different between the grade packs. I designed the mysteries this way to enable differentiating the task within your classroom (without your kids knowing that they might have an easier or harder version than their peers.) You can also 'clue swap' across grades (except for the Kindergarten & 1st grade version) as long as the clue number is the same if you find that you'd prefer the math skill for a particular clue from a different grade edition. For example, swap clue 3 from the 4th grade edition with clue 3 in the 5th grade edition and it will still work the same (just the math will be different). I've added an alternative suspect list to the pack to change the mystery outcome, including two pre-made lists for you to swap out if you want a different mystery solution.

There are many different mystery titles in my store available if you'd like more Math Mysteries with different clues and solutions.


You may also like:

Christmas Math Mystery: Case of The Selfish Elf (GRADE 6)

New Year Math Mystery: Case of The Millennium Bug (GRADE 6)

Christmas CSI DIGITAL Mystery for Zombie Elves (Save paper and Santa!) - Division Facts 1-12


Add extra motivation with this Detective Rank Chart Download the Mystery Record & Rank Chart FREEBIE HERE


Bundle and Save!

COMPLETE Math Mystery Bundle for GRADE 6

HOLIDAY Math Mystery Bundle {GRADE 6}

SEASONS Math Mystery Bundle Pack (GRADE 6)


Not sure what a math mystery is? CLICK HERE to watch a video about Math Mysteries


Browse the 6th Grade Range:

>>Download the FREE 6th Grade Math Mystery Checklist here<<


For more ideas, activities, and resources, follow my store (by clicking the little green star) to stay updated on new releases. We can also stay connected via:





>> CLICK HERE to follow my store <<

Thank you!

Mrs J.

© 2015

Total Pages
19 pages
Answer Key
Teaching Duration
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to see state-specific standards (only available in the US).
Use ratio reasoning to convert measurement units; manipulate and transform units appropriately when multiplying or dividing quantities.
Understand that positive and negative numbers are used together to describe quantities having opposite directions or values (e.g., temperature above/below zero, elevation above/below sea level, credits/debits, positive/negative electric charge); use positive and negative numbers to represent quantities in real-world contexts, explaining the meaning of 0 in each situation.
Interpret and compute quotients of fractions, and solve word problems involving division of fractions by fractions, e.g., by using visual fraction models and equations to represent the problem. For example, create a story context for (2/3) ÷ (3/4) and use a visual fraction model to show the quotient; use the relationship between multiplication and division to explain that (2/3) ÷ (3/4) = 8/9 because 3/4 of 8/9 is 2/3. (In general, (𝘢/𝘣) ÷ (𝘤/𝘥) = 𝘢𝘥/𝘣𝘤.) How much chocolate will each person get if 3 people share 1/2 lb of chocolate equally? How many 3/4-cup servings are in 2/3 of a cup of yogurt? How wide is a rectangular strip of land with length 3/4 mi and area 1/2 square mi?


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