NUMERIA LAB · UNIT RATE · y = kx

Unit Rate Lab

Unit Rate and Constant of Proportionality Lab

Students find their walking pace (simulated, or by pacing the hallway), a lantern's burn rate and a rising tide — then use k forward and backward to find their way out of a dark tunnel.

Screenshot of Unit Rate Lab
Unit Rate Lab in Numeria. Screens show sample students.
Grades
Grade 7
Math
Finding k and solving with y = kx
Format
Solo or small groups
Time
One class period
Runs on
Any browser — Chromebooks and projectors
WHAT STUDENTS DO

How the lab plays

  • Real and simulated measurements become unit rates.
  • Students use k to predict forward and to work backward.
  • It's Act III of Numeria and Beyond, without the story.
THE MATH

Skills covered

  • Unit rates, including with fractions
  • The constant of proportionality
  • Solving problems with y = kx
NC STANDARD COURSE OF STUDY
NC.7.RP.1NC.7.RP.2

Built-in questions follow the NC Standard Course of Study. You can upload your own question banks for any state's standards.

IN YOUR CLASSROOM

How to run it

  1. Introduce it

    Use the slide deck from the lab's resource shelf to set up the investigation.

  2. Work the missions

    Students sign in with their login cards and work through the missions, measuring and recording as they go.

  3. Review the data

    Every student's data is saved. View it in the Teacher Portal or download it as a CSV.

  4. Discuss and check

    Bring the class together around the results, then finish with the exit ticket.

FOR TEACHERS · FREE 30-DAY TRIAL

Try Unit Rate Lab with your class

Unit Rate Lab is one of 19 games and labs in Numeria. A free trial unlocks all of them, plus the Teacher Portal, login cards, one class leaderboard, and the slides, guides and activities that come with every lab.

Request Teacher Access

Up to 6 class periods, 40 students each. Each request is approved by hand, usually within a day.

Questions? justinowens@justinowensauthor.com