Lesson Plan

Recognize equivalent forms of 3-digit numbers using base ten

teaches Common Core State Standards CCSS.Math.Content.2.NBT.A.1 http://corestandards.org/Math/Content/2/NBT/A/1
teaches Common Core State Standards CCSS.Math.Content.2.NBT.A.1a http://corestandards.org/Math/Content/2/NBT/A/1/a
teaches Common Core State Standards CCSS.Math.Practice.MP3 http://corestandards.org/Math/Practice/MP3

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Big Ideas: The same number can be shown in many different ways. This lesson builds on prior work with equivalent representations, presenting each representation in words only and asking students to evaluate if the claims made by other students are correct or incorrect. The format allows students to access the task at their level: some students may opt to use base ten blocks, other students may feel comfortable drawing the ones, tens, and hundreds, and some students may able to count and hold the values in their head. Regardless of how students choose to get to the answer, they are asked to defend their answer with a picture. Vocabulary: equivalent Special Materials: Base ten blocks
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