The article introduces a captivating math puzzle centered around two turtle friends, Cascadura, a land turtle, and Casquinha, a sea turtle. The two turtles have planned a meeting where they will bring gifts for each other: Cascadura will bring fruits, and Casquinha will bring shells. The story invites readers to explore the illustrated map that outlines the starting points for each turtle and indicates the types of terrain they can traverse, specifically grass, sand, and water.

Cascadura is limited to moving through grass and sand, while Casquinha can only navigate through water and sand. The challenge for readers is to determine the best route for each turtle to collect all their gifts without retracing their steps and only moving to adjacent spaces. This scenario not only engages readers with math-related problem-solving but also incorporates elements of spatial reasoning.

The article suggests that more puzzles like this can be found on the portal of the Brazilian Public Schools Mathematics Olympiad (Obmep), organized by the Institute of Pure and Applied Mathematics (Impa). Such challenges aim to foster interest in mathematics among students, creating a fun and interactive learning environment. Overall, this piece highlights the importance of innovative educational approaches in enhancing mathematical skills among young learners.