Lesson 1: Solve division word problems involving multi-digit division with group size unknown and the number of groups unknown.

In this Grade 5 Eureka Math lesson from Chapter 14, students solve multi-step measurement word problems using multi-digit division to find either the group size or the number of groups. Working through real-world scenarios, students apply decimal division and whole number division skills — for example, dividing totals like 609 ÷ 14 and 1,404 ÷ 36 — while also practicing unit conversions involving meters, liters, and kilograms. Students are guided to model problems with labeled diagrams, write equations, and assess the reasonableness of their solutions.