March 23: Otis Elevator Cover Image

March 23 Math & Inventions Puzzle: Otis' First Passenger Elevator | Mixed Review

The first commercial passenger elevator, invented by Elisha Otis, was installed on March 23 of the Mystery Year. This warm-up addresses rate, measurement conversions, dimensional analysis, and multiplicative comparisons.

Your Zip download includes printable/digital PDFs:

1-page printable Student Puzzle
1-page Answer Key with sample solutions
1-page version of puzzle with expanding form fields – use with Acrobat Reader
A complete file including the student puzzle, answer key, 3 pages of Teacher Notes — including step-by-step Solutions, Extensions, Historical Notes, and a variety of professional development support.