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ClassFlow
Class Flow: All in the Family: Fact Families
[Free Registration/Login Required] This flipchart explores the concept of fact families for addition and subtraction as well as inverse operations. There are several pages of hands on activities to engage student learning.
Illustrative Mathematics
Illustrative Mathematics: 4.oa Comparing Growth, Variation 1
The purpose of this task is to foster a classroom discussion that will highlight the difference between multiplicative and additive reasoning. Aligns with CCSS.Math.Content.4.OA.A.1 Interpret a multiplication equation as a comparison
NumberNut
Number Nut: Comparing Operations
Combine all of your knowledge about the four basic operations in this lesson that focuses on comparing operations. Discover the relationship between of each operation and key vocabulary terms to build your number sense.