Sept. 22 Cover Image

Ice-Cream Cup Patent by Italo Marchiony | Middle School Math Activity & Slides

Sept. 22 of the Mystery Year was the patent date for inventor Marchiony's ice cream cup. As middle school students solve clues, they review volume of a right rectangular prism and a cylinder, operations with decimals, and making a frequency table in a real-world context. The clues help students find digits of the Mystery Year.

Your Purchase Includes Print & Digital Options:

1-page printable puzzle with 1-page answer key
3 pages of Teacher Notes including step-by-step solutions, optional extensions, and a variety of professional development support
22-page PowerPoint file including the introduction and clues from the student page, plus answer screens, a multi-step Extension, and Historical Notes. This PPT file can be uploaded as Google Slides. (You don't need to own PowerPoint.)