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Lesson Plan

Compare two 3-digit numbers by looking at the number in expanded form using a game

teaches Common Core State Standards 1.2G
teaches Common Core State Standards 2.2D
teaches Common Core State Standards 2.NS.7
teaches Common Core State Standards CCSS.Math.Content.2.NBT.A.4
teaches Common Core State Standards MAFS.2.NBT.1.4

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Big Ideas: Looking at a 3 digit number in expanded form helps decide which has a greater value. The value of a digit is determined by its place within a number. Numbers can be compared according to their values (< means "less than", > means "greater than", = means "equal to"). This lesson builds on students' work with base 10 and comparing numbers. Students play a game selecting a 3-digit number in expanded form and compare that number with a partner’s. Students identify the larger number, explain how they know and record their comparisons on a game worksheet. The mathematical concepts taught in this lesson build toward a well-developed understanding of the base 10 number structure. This will allow students to manipulate and make sense of numbers that are more complex. Vocabulary: compare, equal, expanded form, digit, value, place, more than, less than, greater than, less than, number, word form, number parts Special Materials: Printable Arrow Cards Gameboard
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