An animated journey into the world of rational numbers! A fraction thief disrupts a number town, leading to a fun exploration of fractions, natural numbers, and mathematical concepts.

Merlyn J. Behr, Helen A. Khoury, Guershon Harel, Thomas Post, Richard Lesh, Conceptual Units Analysis of Preservice Elementary School Teachers' Strategies on a Rational-Number-as-Operator Task, ...