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Lesson Plan

Baltimore Field Trip: Trajectory of Understanding

teaches Common Core State Standards CCSS.Math.Practice.MP1 http://corestandards.org/Math/Practice/MP1
teaches Common Core State Standards CCSS.Math.Content.4.NBT.B.5 http://corestandards.org/Math/Content/4/NBT/B/5
teaches Common Core State Standards CCSS.Math.Practice.MP3 http://corestandards.org/Math/Practice/MP3
teaches Common Core State Standards CCSS.Math.Content.4.OA.A.3 http://corestandards.org/Math/Content/4/OA/A/3
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Students will understand that place value is used when finding the product of two multi-digit numbers. The suggested public discussion of student work shows trajectory of understanding. Discussing this work publicly is important because the students must realize how place value affects multiplication. The task also involves a multi-step problem that requires understanding of multi-digit addition as well as multiplication. Three pieces of work are shown. The first piece of work shows the correct equation using the standard algorithm, however the student does not recognize the place values in the numbers being multiplied. The second piece of work shows that the student does recognize the importance of place value in the multi-digit number. The student sets up the equation correctly and solves the equation using an array, but makes minor computation errors. The third piece of work shows the understanding of place value as well as the use of multiple models to solve the equation. In addition, there is a comparison sentence written about the prices. Special Materials: None
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