In Topic E, students begin by working with facts using units of 0 and 1. From a procedural standpoint, these are simple facts that require little time for students to master; however, understanding the concept of nothing (zero) is among the more complex, particularly as it relates to division. This unique combination of simple and complex explains the late introduction of 0 and 1 in the sequence of factors. Students study the results of multiplying and dividing with those units to identify relationships and patterns (3.OA.7, 3.OA.9). The topic closes with a lesson devoted to two-step problems involving all four operations (3.OA.8). In this lesson, students work with equations involving unknown quantities and apply the rounding skills learned in Module 2 to make estimations that help them assess the reasonableness of their solutions (3.OA.8).
Grade 3 Mathematics Module 3, Topic E, Overview
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Common Core Learning Standards
|3.OA.3||Use multiplication and division within 100 to solve word problems in situations involving equal...|
|3.OA.7||Fluently multiply and divide within 100, using strategies such as the relationship between...|
|3.OA.8||Solve two-step word problems using the four operations. Represent these problems using equations...|