Scale Factor Lab
Scale Factor and Scaled Copies Lab for 7th Grade
What a scale factor is for, how to find it, and how to use it. Students measure copies, catch the forgeries, build a scaled copy, and discover what happens to area.
- Grades
- Grade 7
- Math
- Scaled copies and scale factor
- Format
- Solo or small groups; printable option
- Time
- One class period
- Runs on
- Any browser — Chromebooks and projectors
How the lab plays
- Students measure on screen, or with a ruler on a printed sheet.
- They decide which copies are true scaled copies and which are forgeries.
- It's Act IV of Numeria and Beyond, without the story.
Skills covered
- Identifying scaled copies
- Finding and using scale factor
- Scale drawings
- How scaling changes area
Built-in questions follow the NC Standard Course of Study. You can upload your own question banks for any state's standards.
How to run it
Introduce it
Use the slide deck from the lab's resource shelf to set up the investigation.
Work the missions
Students sign in with their login cards and work through the missions, measuring and recording as they go.
Review the data
Every student's data is saved. View it in the Teacher Portal or download it as a CSV.
Discuss and check
Bring the class together around the results, then finish with the exit ticket.
Try Scale Factor Lab with your class
Scale Factor 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.
Up to 6 class periods, 40 students each. Each request is approved by hand, usually within a day.
Questions? justinowens@justinowensauthor.com
