Pool Border Problem

In this Desmos-ified treatment of a classic math problem, students will first construct expressions with numbers to determine the number of tiles that border a pool. Then they'll use those numerical expressions to help them write an expression with VARIABLES. Then they'll put the algebraic expression to the test and see if it helps them find the tiles for lots of pools very quickly. Translated by the Desmos localization team into: Spanish: https://teacher.desmos.com/activitybuilder/custom/5efa5eb945f50e629123f938?lang=es Translated by volunteers into: French: https://teacher.desmos.com/activitybuilder/custom/5a942a30d9f103093fb076e8 Hebrew: https://teacher.desmos.com/activitybuilder/custom/5edbbea741010f6d3cbe4de3

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