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CSI: Real Number System | Classifying Rational & Irrational Numbers Review Game
CSI: Real Number System | Classifying Rational & Irrational Numbers Review Game
CSI: Real Number System | Classifying Rational & Irrational Numbers Review Game
CSI: Real Number System | Classifying Rational & Irrational Numbers Review Game
CSI: Real Number System | Classifying Rational & Irrational Numbers Review Game
CSI: Real Number System | Classifying Rational & Irrational Numbers Review Game
CSI: Real Number System | Classifying Rational & Irrational Numbers Review Game
CSI: Real Number System | Classifying Rational & Irrational Numbers Review Game
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Description

Turn real number system review into a crime-solving investigation students actually care about. Students classify rational and irrational numbers across six crime scenes to uncover clues and identify the suspect.

Nothing like a good criminal investigation to liven up the Real Number System! In this project, students will work in teams to investigate the culprits of six fictional thefts. The criminal has left six messages, layered with algebra. Teams will work to build a case and present their findings to the court. Hopefully, they are convincing enough to win the verdict.

I like to use these puzzles as a review before the unit test. The puzzle-solving hook causes many different students to engage in solving traditionally mundane problems. Be the cool teacher :-)

In this 20-page document, you will be given a mapping to the Content Standards, an outline for how to implement the project, and six crime scene puzzles.

This puzzle includes problems featuring the following skills: The Real Number System, Properties of Real Numbers, Irrational Numbers, Square Root Approximations, and Perfect Squares and Cubes.

An answer key has been added to the end of the file for your convenience.

***THIS PRODUCT HAS BEEN UPDATED WITH A GOOGLE SLIDES INTERACTIVE VERSION INCLUDED. REDOWNLOAD IF YOU HAVE IT ALREADY***

#ccemathcsi To find more CSI activities CLICK HERE.

You may be interested in the following discounted bundles. SAVE $$$!

CSI Investigations – All of Them

CSI: Algebra eBook

Need an Entire Curriculum?

21st Century Algebra –- the Entire Curriculum

#FREECC

For more tips, tricks and ideas check out the Clark Creative Education Blog

And join our community where I post ideas, anecdotes, elaborations & every once in a while I pass out TPT gift cards! And jokes! I do jokes too!

Clark Creative Education Facebook Page

Report this resource to TPT
Reported resources will be reviewed by our team. Report this resource to let us know if this resource violates TPT's content guidelines.

CSI: Real Number System | Classifying Rational & Irrational Numbers Review Game

Clark Creative Math
18.6k Followers
FREE

Highlights

Digital downloads
Standards icon
Standards
Pages
20
Answer Key
Included
Teaching Duration
1 hour

Save even more with bundles

This is a selection of my The Real Number System resources all in a money saving Essential Bundle! You save significant money and time versus purchasing these separately!Essential Bundles are designed to give you everything you need to rock your unit. Warmups, Notes, Activities, Games, Exit Tickets,
Price $15.00Original Price $61.00Save $46.00
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Algebra review has never been this fun! There's nothing like a good criminal investigation to liven up math class!CSI: Algebra is a collection of nine different algebraically inspired mathematical puzzles with a little international pizazz. The nine puzzles intend to target specific Algebra 1 units
Price $20.00Original Price $40.00Save $20.00
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Nothing like a good criminal investigation to liven up number sense!The bundle includes all five of my best selling CSI eBooks: Elementary, Pre-Algebra, Algebra 1, Geometry and Algebra II & Pre-Calculus. It is a total of 45 CSI Projects in all which span 2-3 class days apiece. Great for review a
Price $80.00Original Price $215.00Save $135.00
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Description

Turn real number system review into a crime-solving investigation students actually care about. Students classify rational and irrational numbers across six crime scenes to uncover clues and identify the suspect.

Nothing like a good criminal investigation to liven up the Real Number System! In this project, students will work in teams to investigate the culprits of six fictional thefts. The criminal has left six messages, layered with algebra. Teams will work to build a case and present their findings to the court. Hopefully, they are convincing enough to win the verdict.

I like to use these puzzles as a review before the unit test. The puzzle-solving hook causes many different students to engage in solving traditionally mundane problems. Be the cool teacher :-)

In this 20-page document, you will be given a mapping to the Content Standards, an outline for how to implement the project, and six crime scene puzzles.

This puzzle includes problems featuring the following skills: The Real Number System, Properties of Real Numbers, Irrational Numbers, Square Root Approximations, and Perfect Squares and Cubes.

An answer key has been added to the end of the file for your convenience.

***THIS PRODUCT HAS BEEN UPDATED WITH A GOOGLE SLIDES INTERACTIVE VERSION INCLUDED. REDOWNLOAD IF YOU HAVE IT ALREADY***

#ccemathcsi To find more CSI activities CLICK HERE.

You may be interested in the following discounted bundles. SAVE $$$!

CSI Investigations – All of Them

CSI: Algebra eBook

Need an Entire Curriculum?

21st Century Algebra –- the Entire Curriculum

#FREECC

For more tips, tricks and ideas check out the Clark Creative Education Blog

And join our community where I post ideas, anecdotes, elaborations & every once in a while I pass out TPT gift cards! And jokes! I do jokes too!

Clark Creative Education Facebook Page

Report this resource to TPT
Reported resources will be reviewed by our team. Report this resource to let us know if this resource violates TPT's content guidelines.

Reviews

4.7
Rated 4.69 out of 5, based on 430 reviews
430
ratings
5
359
4
64
3
6
2
1
1
0
Mostly used with 7th and 8th grades
Reviews
13
56
49
33
16
17
12
6th
7th
8th
9th
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12th
All verified TPT purchases
Great resource
Rated 5 out of 5
June 3, 2026
This resource was great for my students. Many of my students were engaged and participated in the activity.
Learning Flamingos
(TPT Seller)
441 reviews • New York
Grades taught: 9th, 10th, 11th, 12th
Student populations: Learning difficulties
Well crafted resource
Rated 5 out of 5
May 22, 2026
This is a really great review game so that students can review in a fun way!
Yasmin S.
245 reviews • New Jersey
Grades taught: K, 1st, 2nd
Student populations: Autism, Emerging bilinguals, Learning difficulties, Mild to severe disabilities
useful for groups
Rated 5 out of 5
April 26, 2026
It was a great resources from the groups I run with my kiddos
Stephanie B.
334 reviews
Fun Interactive Activity
Rated 5 out of 5
April 5, 2026
I wanted something new for my kids to review. They loved this! Thank you!
Rebecca M.
287 reviews • North Carolina
Grades taught: 3rd, 4th, 5th
Good review
Rated 5 out of 5
March 12, 2026
Met expectations
Would purchase more
Standards-aligned
This was a fun review for my students. They did struggle on some of the directions (confusing) on one set of clues.
Stacie M.
284 reviews • Kentucky
Grades taught: 4th, 5th, 6th
Always Fun!
Rated 5 out of 5
January 7, 2026
We have done many of these types of activities, and my students always find them intriguing! The students had fun and got to practice at the same time.
Dana P.
215 reviews • New Mexico
Grades taught: 6th, 7th, 8th
Student populations: Autism, Mild to severe disabilities
A fun way to math!
Rated 5 out of 5
December 30, 2025
I love these for review because it makes my students forget they are doing math.
Katie Alexander
(TPT Seller)
176 reviews • Oregon
Grades taught: 6th
great resource
Rated 5 out of 5
October 24, 2025
Met expectations
Would purchase more
Standards-aligned
Such a great resource! really kept my students engaged. I enjoyed this resource and will purchase more from this creator.
Teresa L.
527 reviews • Texas
Grades taught: 9th

Questions & Answers

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Standards

to see state-specific standards (only available in the US).
Apply and extend previous understandings of multiplication and division and of fractions to multiply and divide rational numbers.
Solve real-world and mathematical problems involving the four operations with rational numbers.
Know that numbers that are not rational are called irrational. Understand informally that every number has a decimal expansion; for rational numbers show that the decimal expansion repeats eventually, and convert a decimal expansion which repeats eventually into a rational number.
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