Ratios and proportions worksheets, unit rate and unit price practice pages, and self-checking mini Mystery Detective pack of math activities for 6th grade are all included in this printable ratios and rates detective pack. Students work through equivalent ratios, cross multiplying, unit rate, unit price and the constant of proportionality. Perfect for math centers and stations, small groups, warm ups, homework, spiral review, test prep, intervention, early finishers, substitute plans and homeschool. Completely no prep - just print and go.
Every case is set in a pizzeria on its busiest delivery night: a recipe card off its hook, a second price list on the counter, four sets of scooter keys gone with the orders going cold. The pages check themselves - a wrong answer stops the mystery in its tracks, so students go back and find their own mistake before it ever reaches your marking pile.
What's Inside
- Finding the missing term in equivalent ratios, in colon and fraction notation: 9:10 = x:120
- Solving proportions by cross multiplying, where the scale factor is not a whole number: 12/18 = x/27
- Unit rate: 936 ml in 13 jugs, 336 pies in 7 hours
- Unit price worked to the cent: $66 for 15 boxes, $52 for 5 tins
- The constant of proportionality read straight from a pair of values: x = 16, y = 304
- Mixed pages where reading the question is half the skill
- A reference page on ratio notation, cross multiplying, and why ratios multiply instead of adding
Ten leveled cases run through one delivery night: The Stolen Dough Recipe, The Swapped Sauce Pots, The Vanished Pizza Peel, The Jammed Dough Roller, The Empty Tomato Crate, The Faked Price List, The Muddled Order Dockets, The Crushed Pizza Boxes, The Missing Scooter Keys and The Hundred Pizza Order.
Answer keys, a detective's case log and a certificate of achievement are included.
What is a Mini Mystery Detective?
A no-prep detective activity where students solve math problems to cross off suspects and unmask the culprit. Skill practice plus critical thinking in one engaging, self-checking worksheet set - like an escape room without the locks.
When to Use This Resource
- Math centers, stations and rotations
- Guided math and small group work
- Warm ups, bell ringers and morning work
- Homework and independent practice
- Spiral review before percents and scale drawings
- Test prep and end-of-unit review
- Intervention, tutoring and enrichment
- Early finishers and indoor recess
- Substitute plans and emergency cover
Grade Levels
Designed for 6th grade, where ratios, rates and unit price are taught. Also beneficial for 7th graders meeting the constant of proportionality, and for advanced 5th graders moving from equivalent fractions to equivalent ratios.
Why Teachers Love Mystery Detectives
- Zero prep - print and go
- Self-checking, so students catch their own mistakes
- Leveled, so you can hand different pages to different students
- The wrong badges are the mistakes students really make - adding the difference instead of multiplying, or dividing the wrong way round - so you can see which step slipped
- Prints clean in black and white
- A detective hook that keeps a whole class working
Love this resource?
Follow Kiwiland Education to discover more Mystery Detectives, ratios and proportional reasoning activities, and detective-themed math for upper elementary and middle school classrooms.
https://www.teacherspayteachers.com/Sellers-Im-Following/Add/Kiwiland
