2020-11-18T13:09:07-05:00 2016-06-14T13:39:52-04:00 2020-11-18T13:09:07-05:00 Acrobat PDFMaker 11 for Word uuid:e34475d0-6f88-4863-8946-6747c1b79ac1 uuid:45548f84-23c8-4589-a76f-59f6234793b6 2 xml Moira Snider 15.03.10: Helping Students Justify and Reason Division as the Inverse of Multiplication Math multiplication division inverse modeling reasoning problem solving Adobe PDF Library 11.0 multiplication, division, inverse, modeling, reasoning, problem solving D:20160126172614 Hewlett-Packard Company Unit Abstract Helping Students Justify and Reason Division as the Inverse of Multiplication Moira Snider This unit was developed to deepen third grade students’ understanding of both multiplication and division and their relationship to each other. The unit also focuses on persevering through and making sense of real world problems. The unit contains lessons designed for collaboration. The use of ‘Think/Pair/Square’ and Gallery Walks protocols allows students to share and justify their explanations to problems. Peers get the opportunity to question, analyze, and evaluate other students’ mathematical thinking. Cooperative learning can encourage mathematical concepts to be more fully understood. Multiplication and division understanding is essential for students in grade three. Having a solid background with these two operations lays the foundation for a deeper understanding of more complex mathematics later in life.