Pico, Fermi, Bagel

Original activity: https://teacher.desmos.com/activitybuilder/custom/63ceac97e0216eace8bd6fd0 by Erick Lee The classic game of "guess my number." I originally saw this game in the book Math for Smarty Pants by Marilyn Burns (1982) however the game has been around since at least the early 1970s.

By Elayna *