Reasoning About Division
Common Core State Standards
Math 
Math 
4 
Grade 4 
NBT 
Number & Operations in Base Ten 
B 
Use place value understanding and properties of operations to perform multidigit arithmetic 
6 
Find wholenumber quotients and remainders with up to fourdigit dividends and onedigit divisors, using strategies based on place value, the properties of operations, and/or the relationship between multiplication and division. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models. Grade 4 expectations in this domain are limited to whole numbers less than or equal to 1,000,000. 
Download Common Core State Standards (PDF 1.2 MB) 

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 9
 Lesson Objective
 Develop an understanding of the meaning of division
 Length
 7 min
 Questions to Consider
 How does Ms. Simpson encourage mathematical discourse?
 Why is it important to discuss and understand multiple strategies?
 What can you learn from Ms. Simpson about facilitating discussion?
 Common Core Standards
 Math.4.NBT.B.6
Teacher & School Info
 School Details
 Lakeridge Elementary School Seattle, WA
 Population
 420 students
 District Spending
 $8,208
Supporting Materials

Transcript for Reasoning About Division
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Lesson Idea (Common Core) Reasoning About Division
Grades 35 / Math / Strategies