Big Idea: An algorithm can be an effective and efficient way to divide whole numbers. Division models can help demonstrate how the algorithm works. This lesson builds on students’ work in fifth grade with visual and other conceptual models associated with division of whole numbers. The purpose of this standard is for students to understand and fluently use the standard algorithm for dividing whole numbers. This builds towards division of rational numbers in 7th grade. In this task, students are asked to evenly distribute 1,727 sour gum drops to 14 candy shops. The sour gum drops are packaged in cases, boxes, rolls, and by individual pieces. The question asks the students to determine how many cases, boxes, rolls, and individual pieces each store will receive. Successful use of the standard algorithm is the goal of this lesson. However, conceptual models should be used to make connections to the algorithm and lead to students successfully divide whole numbers with the standard algorithm. Vocabulary: Dividend Divisor Quotient Remainder Whole number place value vocabulary (thousands, hundreds, tens, ones)

Lesson plan • by Caitlin Salmon